30 October 2014

Bird Tragedies of Late-October Days at Omaha

With an expectation of changing weather in some subsequent days, some particular attention was given to survey the situation associated with bird-window strikes at numerous buildings in downtown Omaha, just west of the Missouri River.

The weekend of October 25-26 started the norm of a routine, well known. There were no records of bird-window strikes, along the usual route on three days earlier in the week, the days being Monday (October 20th), Wednesday (22nd) and on Friday (the 24th which was a morning of an irksome OMetro bus whose driver would not yield, once and again another time, ending with a point made near the cemetery further westward along Leavenworth Street) when there were low-lying, foggy-type of clouds, and steady southerly winds. The usual route was followed so there was nothing different associated with the survey effort as done a few hundred times previously. These were just a few of many days when there were no findings during the past years when surveys have been done, yet there has never been any data-record kept for the bicycle effort on mornings when there were no bird carcasses found.

On Saturday morning, there were several instances of dead birds at downtown Omaha buildings. These are the particulars, as found during an early morning bicycle survey on October 25th, when there was not much wind.

  • CenturyLink Center Omaha: Savannah Sparrow, carcass ten feet north of convention center entrance
  • CenturyLink Center Omaha: Savannah Sparrow, carcass 15 feet north of convention center entrance
  • CenturyLink Center Omaha: Savannah Sparrow, disabled bird 20 feet north of convention center entrance
  • CenturyLink Center Omaha: White-throated Sparrow, carcass one foot north of second from north entrance
  • CenturyLink Center Omaha: Cooper's Hawk, dead juvenile next to pigeon at the south end of the west facade, just south of the convention center entrance
  • CenturyLink Center Omaha: Rock Pigeon; dead, next to Cooper's Hawk carcass, at the south end of the west facade, just south of the convention center entrance
  • American National Bank: White-throated Sparrow; carcass on the south side, about 20 feet from the east corner

The occurrence of birds struck dead by flying into glass walls of buildings in downtown Omaha continued on Sunday. There were more fatalities found on the second day of the weekend, October 26th, as indicated by the following details.


  • TD Ameritrade Park: Dark-eyed Junco, one of two disabled birds on the south side, just north of the 12th and Fahey Street intersection
  • TD Ameritrade Park: Dark-eyed Junco, one of two disabled birds on the south side, just north of the 12th and Fahey Street intersection
  • CenturyLink Center Omaha: Savannah Sparrow, one of two dead birds, one on bench about 30 feet north of the second from north entrance
  • CenturyLink Center Omaha: Savannah Sparrow, one of two dead birds by bench about 30 feet north of the second from north entrance
  • CenturyLink Center Omaha: Clay-colored Sparrow, dead about ten feet south of the second from north entrance
  • 1200 Landmark Center: Lincoln's Sparrow, carcass on the sidewalk at the west side entrance
  • Central Park Plaza: Dark-eyed Junco, carcass at the plaza by the north entrance of the south tower
  • Gavilon Building: Savannah Sparrow, carcass on the west side, about ten feet from the north corner
  • Omaha-Douglas Civic Center: Grasshopper Sparrow, carcass on the north side of the atrium, about ten feet from the east corner

On Monday morning, with light winds prevailing and which were hardly noticeable at the time of my outing, a vividly colored sparrow was found dead at the doorway of a place associated with the Slowdown complex in north Downtown.


  • Urban Outfitters at the north downtown Slowdown complex: Fox Sparrow, carcass on the west side of the store, by the main entrance

Another instance for this period of time is for Tuesday, October 28th. A disabled Savannah Sparrow was noted at the CenturyLink Center Omaha, a short time after sunrise.


As the weather changed to more of a typical autumn regime on October 27-28, the subsequent few days may be times for more bird deaths among the buildings of downtown Omaha as more wildbirds migrate southward.


26 October 2014

Tragedy of Two Birds at CenturyLink Center Omaha

An urban mix of a frantic pigeon, a hungry hawk and the glass facade of a building was vividly indicated by the outcome of their encounter.

There are dozens of Rock Pigeons that occur about the CenturyLink Center Omaha in north downtown. They can be seen flying about on a regular basis, or sitting about someplace they prefer there, every day by someone that cares to take a look.

The many fat pigeons attracted a hungry Cooper's Hawk on Friday, October 24th.

Those pigeons of downtown Omaha have attracted a Cooper's Hawk on more than one occasion prior to this event.

Once the juvenile hawk selected its prey, a chase ensued, with the frantic pigeon in a quick flight along the west wall of the building, as it seeked an escape. When the pigeon darted into what appeared to be a route to safe haven, the hawk followed. The choice by the first bird led to its death when it whacked into the lower extent of glass on the west side of the CenturyLink Center, just south of the convention center entrance. Its pursuer met a similar fate.

The two birds were found next to each other on the southern extent of the west wall of the facility, the results of their encounter obvious when found on Saturday morning. There were two feathery carcasses, not supple, indicating that they had been lying dead upon the concrete for hours before the sunrise visit.



What a tragedy for the young hawk to die in this manner, especially when its death did not have to occur, and would not have happened if the clear glass had been suitably marked and made obvious enough for the keen sight of all avifauna. Both birds would have realized there was an obstruction ahead, and gone a different way.

They did not have this opportunity since the Metropolitan Entertainment and Convention Authority -- which manages the Qwest/CenturyLink Center -- has, for years, been indifferent to placing a sufficient number of suitable markings on the glass of the west facade of this building. A few small stickers on the upper portions of the glass are not enough since there have been a multitude of bird deaths documented in detail along this "wall of death" in the past few years.

Before finding the hawk and the pigeon, there were three Savannah Sparrows either disabled or dead a short distance northward on the west side of the center, and they were the first bird-window strikes of another Saturday morning bicycle outing.

The carcasses of the hawk, as well as the sparrows, were disposed of in a suitable manner. And they were not thrown into any trash can as to do so would be a disgrace to the spirit of the winged ones.


There was a Cooper's Hawk flying about TD Ameritrade Park the morning of October 26th, checking out the juncos and sparrows along Mike Fahey Street.

Autumn Season of Chimney Swifts of Eastern Omaha - 2014

The autumn 2014 season of Chimney Swifts congregating at suitable spaces of eastern Omaha was notably different in comparison to previous years.

Swifts were gone from the city skies days earlier than previously noted. Though these bird had migrated to the south, there were warm days and bugs notably present. Temperatures were above average through nearly the end of October. European Starlings were seen "hawking" for bugs in the sky, similar to what swifts did in previous weeks of the year.

A new record for the number of swifts using one chimney occurred this autumn, and it was at the Izard Industrial Zone on September 16th. It surpassed the earlier record counts for a church in the Blackstone neighborhood.

These are the peak counts associated with the results of Omaha swift surveys, conducted since 2003 in the eastern extent of the river city:

  • Izard Industrial Zone on 09/16/2014 - 1530; a magnificent evening count at the CenturyLink maintenance facility chimney along Izard Street, near 43rd Street
  • Blackstone District on 09/13/2011 - 1400; done by 7:55 p.m.; same number as two nights ago at First Central Congregational Church
  • Blackstone District on 09/11/2011 - 1400; multi-sided chimney at First Central Congregational Church at 36th and Harney; massing about and then entered in about five minutes; multiple layers, directions and swirls; counted by groups of ten as they entered
  • Blackstone District on 09/17/2014 - 1385; into First Central Congregational Chimney
  • Izard Industrial Zone on 10/09/2012 - 1350; swarming as they have on the previous two nights; ready vocalization; done by ca. 7:15 p.m. at CenturyLink building
  • Izard Industrial Zone on 10/08/2012 - 1325; vocal as typical on a warmer evening, with some sort of hurry for them to get into CenturyLink chimney; done about 7:25 p.m., with dusk heavy on the scene; counted in groups as they entered chimney at CenturyLink building
  • Izard Industrial Zone on 10/07/2012 - 1325; a surprisingly large, vocal group early into the CenturyLink chimney; done by 7:15 p.m. with bunches counted as they swiftly entered the chimney

The last observation of the 2014 season was eleven swifts seen at Benson on October 15th. Ten of the birds flew southeast of the central building district to an unknown roost, and only one was seen using a particular chimney. Swifts utilize several chimneys in this urban setting, as seen and enjoyed by residents and visitors, as experienced on the streets of this district during October.

This occurrence was earlier than expected, as once there was a cool night or two, the weather moderated, with temperatures in the 70s and frost-free night for seven to ten subsequent days. There were European Starlings flying like swifts hawking for bugs seen after the bug-eaters were gone.

After many years of observation and keeping detailed records, there are enough details to determine some approximate sort of pattern associated with the autumnal gatherings of the swifts at Omaha. There may be many dozens of birds present and using a particular chimney on one evening, yet none the next day at the same time. This was obvious this year, especially at the Dundee at Dodge Street locale. There were an approximate 155 seen on October 13, yet none the next evening.

During the 2014 season, the largest congregations of swifts at roosts occurred nearly three weeks prior to dates when a similar number occurred in 2013. Also, the last known presence of these birds occurred a week earlier than last year, based upon surveys done at the same geographic locale.

There are more than twenty records of occurrence for swifts in Omaha, subsequent to the latest date for the 2014 autumn season. This includes five times when more than one hundred swifts were counted at a particular chimney in the evening.

This is a summary of the autumnal days associated with Chimney Swift occurrence among the urban setting of eastern Omaha, for the past few years. The records are based upon multiple surveys, primarily during the evening hours. Julian date 255 is usually October 12th, with October 21st the latest date indicated.

Julian Date 2003 2005 2007 2008 2009 2010 2011 2012 2013 2014
255 425 850 - - - - 374 - - 90 23 - - - -
256 265 160 - - - - 60 - - 1400 - - 18 - -
257 - - 265 - - 65 - - 25 254 325 220 - -
258 66 - - - - - - 66 - - - - 2 185 44
259 157 - - - - - - 58 - - - - 130 81 1530
260 405 - - - - 25 27 - - - - 504 1 1402
261 80 - - - - - - 304 - - - - 75 9 62
262 462 - - - - - - 243 - - 60 56 12 711
263 325 - - - - - - - - 10 70 480 534 - -
264 460 - - - - - - 495 190 - - 145 135 - -
265 - - - - - - 25 269 - - 45 225 93 700
266 - - - - - - - - 136 16 140 335 - - - -
267 - - - - - - - - 98 65 - - 17 19 200
268 - - - - - - 15 266 220 - - - - - - 342
269 - - - - - - - - 137 1 - - - - 97 372
270 - - - - - - - - 170 - - - - 365 7 200
271 - - - - - - 260 155 - - - - 65 505 - -
272 - - - - - - - - 408 2 - - 260 349 285
273 - - - - - - 155 13 2 - - 225 140 - -
274 - - - - - - 225 724 - - - - 121 33 20
275 - - - - 25 330 - - - - - - 68 306 630
276 - - - - - - - - 178 3 - - 10 53 - -
277 - - - - - - 385 511 - - - - 96 62 330
278 - - - - - - 12 42 - - 430 660 160 110
279 - - - - - - 32 228 15 - - 630 135 150
280 - - - - - - 120 65 - - - - 59 155 55
281 - - - - - - 360 107 130 8 1325 201 121
282 - - - - - - 85 227 140 190 1325 154 66
283 - - - - - - 183 90 - - 90 1350 200 180
284 - - - - - - 289 2 140 - - 626 168 243
285 - - - - - - 397 8 265 65 585 157 23
286 - - - - - - 120 - - - - 17 625 31 165
287 - - - - - - 130 - - - - - - 710 9 2
288 - - - - - - 65 1 - - 4 6 2 11
289 - - - - - - 137 16 - - - - 10 4 - -
290 - - - - - - 191 - - - - - - - - 7 - -
291 - - - - - - 136 1 - - - - - - 147 - -
292 - - - - - - 25 54 - - - - - - 132 - -
293 - - - - - - - - - - - - - - - - 1 - -
294 - - - - - - - - 9 - - - - - - - - - -

There is no effort underway in Omaha to designate and conserve chimney structures utilized by thousands of migratory and breeding Chimney Swifts. The trend continues to be a loss of chimney roosting habitat, with particular spaces lost each year, to the detriment of the birds.

24 October 2014

Cellular Tower Threats to Birds and Sandhill Features

Cellular communication towers being sited near Hyannis and Whitman pose a potential threat to migratory birds, and will also change the local character of the sand hills.

Three towers more than 300 feet in height, with associated guy wires are either approved or being considered by the Federal Aviation Administration. Each one is located in association with wetland habitats near the two communities.

Two towers locations are east of Hyannis and south of Avocet WMA:

* one for Alltel southwest of the intersection of highways 2 and 61, with a height of 308 feet above ground level, and placed upon a hilltop.
* another for Verizon sited at the Pelican Beach Club golf course, and with a height above the ground of 358 feet; a public notice on this tower was recently issued in the Grant County News.

Communication tower guylines are a known hazard to flying birds, according to many studies.

Avocet WMA is a known haven for birds, with nearly seventy different species of birds known to occur. Especially prominent are the Trumpeter Swans, which typically nest each summer season, and when more than half-a-dozen can occur. These birds, the largest of the North American waterfowl, typically fly just above the hills in a steady ponderous flight, and could readily hit any guylines located just south of the wetland. Young, inexperienced juveniles would be especially in danger. Other species present could also strike the lines.

Having two towers placed south of the wildlife area are particularly hazardous due to their proximity and the limitations in flight airspace that will occur.

Near Whitman, a tower is proposed to the north and slightly west of Doc Lake. It would apparently also be a Verizon tower, and also have a height above the ground of a hilltop of 358 feet.

More than seventy species of birds have been recorded to occur at this wetland and lake, including more than a dozen on occasion.

In addition to potential threats to migratory birds, the towers will mar the landscape view. They are all along the Sandhills Journey Scenic Byway and readily visible from Highway 2. The two towers east of Hyannis are also within the northern extent of the Sandhills National Natural Landmark, thus adding further industrial development to this unique tract.

The blinking white lights of these towers will be incessant in the night skies.

The U.S. Fish and Wildlife Service is evaluating the towers to determine if there are any concerns that the agency needs to address. Migratory birds are also protected by the Migratory Bird Treaty Act.

23 October 2014

Whooping Cranes Along Birdwood Creek

Information has been received that Whooping Cranes occur along Birdwood creek in the immediate vicinity of the R-Project. Three of these birds were observed April 19, 2004 along the creek, about 0.5 mile south of the preferred r-project line crossing, according to Fish and Wildlife Service records.

Whooping Cranes are an endangered species, and the Nebraska Public Power District is required by state and federal laws to conduct an environmental assessment to evaluate how the r-project may affect this bird as well as other listed species.

22 October 2014

FWS Comments on Birdwood Creek and R-Project

The following is an email sent by Robert M. Harms, a biologist with the U.S. Fish and Wildlife Service ecological services office in Nebraska, in regards to Birdwood Creek and the proposed R-Project. This is the entirety of the email sent to the Nebraska Public Power District, and presented verbatim with his permission.

"Please make reference to a recent site visit held on June 16, 2014, that was hosted by a local landowner (Mr. Mike Kelly) and attended by several organizations and individuals including but not limited to the U.S. Fish and Wildlife Service (Service), Nebraska Game and Parks Commission, Nebraska Public Power District (NPPD), The Nature Conservancy, Ducks Unlimited (DU), and local landowners. The site visit was informational and focused on potential migratory bird issues in the area of the proposed R-Project—especially the alternative preferred by NPPD. There was important discussion at the site visit about an additional alternative that involves routing the R-Project power line from Gerald Gentlemen Station (GGS) to a northeastern direction, east of North Platte where it would then extend northward along Highway 83 — a.k.a the “East of North Platte Alternative” (see attachment for general location). Discussions at the meeting indicated that this alternative may have less impact on migratory birds because it avoids large concentrations of birds that are prevalent in the area of the preferred alternative. There was also discussions about potential impacts to conservation easements held along the preferred alternative, implications of the line to a new Sutherland Bridge over the North Platte River, and a portion of the Mormon Trail, located just north of the North Platte River.

"As you know, a site visit was also held on June 12, 2014, and it was attended by Jim Jenniges, Michelle Koch, and me. We spent a considerable amount of time traveling the Preferred R-Project Route alternative and an additional NPPD-proposed alternative located just east of the Preferred alternative, west of Hershey.

"The purpose of this E-mail is to summarize the main points at the two site visits held on June 12 and 16 and to make recommendations for how to move forward being mindful of requirements of the Migratory Bird Treaty Act (MBTA) and the National Environmental Policy Act (NEPA). Careful consideration is needed for the development of a preferred alternative to ensure that NPPD maintains compliance with MBTA. Additionally, as you know the Service is moving forward with preparation of an Environmental Impact Statement (EIS) under NEPA to support issuance of a section 10 permit which may authorize take of the federally endangered American burying beetle. The EIS will address not just issuance of the take permit, but the entire R-Project including affects to other Federal and State Trust fish and wildlife resources including migratory birds—preparation of the EIS essentially federalizes the entire R-project given that the project cannot proceed without authorization to take the ABB under a section 10 permit. It will be difficult to prepare a defensible EIS if there is nearly a certainty of noncompliance with MBTA under the currently-proposed Preferred Alternative in these high bird concentration areas.

"Preferred alternative:

"The Preferred Alternative departs GGS and extends northward where it crosses the South Platte River. Of concern to the Service is that this crossing also extends over a perpetual conservation easement that is held by DU on a parcel of private property owned by Neil Hanson. The conservation easement is for a 1-mile-long segment of river frontage and extends along the north bank. The purpose of the conservation easement is for conservation of migratory waterfowl and other birds. During the course of the site visit on June 12 we learned that there are no federal funds associated with this easement. Since that time, however, we have learned that apparently there remains a federal interest in this conservation easement via parcel swapping involving North American Wetland Conservation Act (NAWCA) funds. We suggest that you contact Steve Donovan of DU for clarification and verification. Please notify me if it is determined that a federal interest remains for this conservation easement via federal funds or parcel swaps. I have cc’ed Steve on this E-mail as a heads-up to him.

"The preferred alternative extends northward across several pivots before it intersects with a sand hill, east of Sutherland and heads northward across several meadows and wetlands. As you know, the crop fields in the area provide a considerable amount of habitat for sandhill cranes and other waterfowl in the spring and fall. We are concerned about avian collisions with the R-Project power line in this area given the high concentration of migratory birds in the spring and fall. The R-Project power line makes a turn to the west and then extends northward where it crosses the North Platte River near the Sutherland Bridge. As you know, our preference is always for burial of power lines at river crossings if possible to eliminate all risk of avian collision. If that is not possible, power line crossings at bridges is our next preferred approach as birds tend to avoid areas with increased activities such as bridge traffic.

"From here the power line extends northward through typical sandhill habitat for a few miles, then turns east and crosses Birdwood Creek at a pinch point along the creek. We have learned since our June 12 meeting, however, that the proposed crossing at the pinch point is immediately downstream from a large sandhill crane roost. The area of the crossing contains an abundance of high quality wetland and wet meadow habitats that are used by a diversity and abundance of migratory birds. We are concerned about the proposed crossing in this area because it presents an obvious large risk to migratory birds that use Birdwood creek. We are all too familiar with the risk that such power lines pose to migratory birds when constructed in these kinds of areas and would recommend power line burial to avoid all risk of avian collision here. After crossing Birdwood Creek, the line extends eastward for several miles before it intersects with highway 83 and goes north.

"During our June 12, site visit we also toured an alternative proposed by NPPD, but subsequently eliminated from further consideration. This alternative appears to convey even greater risk to migratory birds via two river crossings over the North and South Platte Rivers, and crossings over a large amount of cropland that provides foraging habitat for migratory birds including large concentrations of sandhill cranes and a large meadow complex on the north side of the North Platte River. This alternative also extends near an area with several playa wetlands, located north of the North Platte River which, as you know, provides habitat for an abundance and diversity of migratory birds including a federally endangered whooping crane confirmed there this last spring.

"Summary

"We have determined that the Preferred Alternative and the other NPPD Alternative (now eliminated from further consideration), both convey great risk to migratory birds, primarily through risk from avian collision with the R-Project power lines. We base this on knowledge of the concentration of migratory birds in the area, two site visits, and firsthand knowledge of the risk that power lines pose to large concentrations of migratory birds. As you know, the MBTA prohibits the intentional and unintentional direct take of migratory birds. Given the concentration of migratory birds in the area it will be difficult for NPPD to maintain compliance with provisions of the MBTA for either alternative.

"We recommend that NPPD do the following using a criteria of NPPD being able to be in compliance with MBTA given the high level of risk associated with power line collisions by large concentrations of migratory birds that are known to frequent the area. Additionally, it is important to keep in mind the relationship between MBTA compliance and defensibility of the EIS as mentioned above. Other alternatives/approaches may be worthwhile to consider evaluating as well—this should not be considered an all-inclusive list of recommendations.

"a) Re-evaluate the preferred alternative and consider alterations to it to avoid and minimize risk to migratory birds. Of great concern is the risk to large concentrations of migratory birds at the currently proposed crossing locations at the South Platte River and Birdwood Creek. We are also concerned about the power line being located in or near conservation easements, cropfields, wetlands, and meadows that provide migratory bird habitat. We appreciate NPPD’s willingness to install bird flight diverters on a large portion of the Preferred alternative line route. However, as you know, BFDs are considerably less that 100 percent effective. A large number of birds can still be killed when they are in large concentrations even when BFDs are installed.
"b) Consider proposing a new alternative that crosses existing bridges and extends along highways in the Hershey-Sutherland area including the need for potential avoidance and minimization measures.
"c) Evaluate the feasibility of the “east of North Platte alternative” that was presented at the June 16 meeting including potential avoidance and minimization measures.

"We recognize the challenges faced by NPPD in the planning and construction of this R-project and appreciate the open lines of communication that have developed over the years as we have worked on other large power line projects together. As always, we would be willing to provide NPPD with technical assistance on this issue including additional site visits and meetings."

- - - - -

This is the response from Thomas J. Kent, the vice-president and chief operating officer of NPPD, as provided to the FWS. This email is being presented here as it is public information as received the FWS, and includes only the pertinent portion of the email.

"When the District first began studying the area around Gerald Gentleman Station (GGS) to determine how best to get the lines out of GGS and along the Sutherland Reservoir and across the Platte River, the District determined that going west out of GGS and then north and back east, would create interferences with multiple existing single circuit and double circuit transmission lines that would result in greater risk to the reliability of the District’s electric system. We also found that the area encompassing the route being proposed by Mr. Kelly includes portions of Birdwood Creek and other tributaries, and contains conservation easements, land in a Wetland Reserve Program area, numerous homes, and three private airstrips that would all need to be considered in the routing process. The area also poses significant challenges due to the lack of roads, ruggedness of the terrain, and the softness of the sandy hills. As a result of these factors, the area encompassing this proposed route was analyzed and eliminated from further consideration for the Project."

20 October 2014

Bird Strike Deaths Continue Unabated in Downtown Omaha

As the autumn migration season continues, bird strikes continue unabated among downtown Omaha buildings. During this time of the year, most of the fatalities are sparrows and juncos, as evidenced by October 18-19th.

This is a tally of known instances of bird window strikes:

A dead Lincoln's Sparrow and White-crowned Sparrow on the south side of the building on the northwest corner of 15th and Mike Fahey Street, which does not have a posted street address.

A disabled Lincoln's Sparrow (18th) and dead Dark-eyed Junco (19th) on the west side of the CenturyLink Center Omaha.

A dead and partly squished Orange-crowned Warbler on the sidewalk by the glass-walled portion of the east side of the Holland Performing Arts Center.

A dead bird was found each of two days at the northern portion of the east wall of the Gavilon building. There was a Harris's Sparrow on the 18th, and a Lincoln's Sparrow on the 19th.



A disabled Clay-colored Sparrow on the west side of the Zorinsky Federal Building, about 30 feet from the south corner (19th).

A dead White-throated Sparrow on the east side and a dead Dark-eyed Junco on the north side of the Law Building, 500 South 18th Street, both on the 18th.



An unusual occurrence of a bird death was the finding of a dead Western Meadowlark on the 18th, beneath the power lines just west of 42nd and Nicholas Street in the Izard Industrial Zone. The carcass was fresh, and had not yet been smashed by vehicle parking. The species identification was determined by an analysis of plumage and feather features. It is quite unusual to have this species occur in the midst of urban Omaha, but meadowlarks have been seen on two occasions at a mown-grass lot to the west, by 49th and Hamilton streets.