Showing posts with label biodiversity. Show all posts
Showing posts with label biodiversity. Show all posts

12 January 2012

La Platte Bottoms Bird Observations During 2011

For the La Platte Bottoms, 2011 was a period of dramatic change. Especially prominent was construction associated with the new freeway alignment directly through its midst, and then came the great flood.

Birders on an outing for observe what might be about made the first known visit on February 20th. During March to the end of May, nearly twenty visits were reported. There were then three visit dates for June, and then the great flood occurred. It wasn't until October that any reports of the birds present could be done, as access had been restricted. The roads were blocked to watchers, though undoubtedly there were birds present.

There were at least 94 distinct species reported for this locality. The tally is skewed towards waterfowl and waterbirds, but a few observations of other species were indicated. Ducks were prevalent with an expressive variety of shorebirds also present.

One particular highlight was the Eurasian Wigeon seen in mid-May during the Sarpy County spring count. Phone call communication brought many local birders to the scene to appreciate this vagrant.

Among the waterfowl, was a hybrid Blue-winged Teal x Cinnamon Teal, also noted in earlier May. Other species noted only once or twice during the year include the Canvasback, Horned Grebe, Eared Grebe, Least Bittern, and Common Moorhen, which represent waterbirds. More than 30 Semipalmated Plover on April 30th, was a distinct occurrence, noted during the days when a Black-necked Stilt and Willet were also observed. In mid-May, a Stilt Sandpiper was added to the site bird-list for the year.

Other occurrences matching this criteria were the Cooper's Hawk, Golden Eagle, Peregrine Falcon, and others. During the year, a single recorded instance of the Downy Woodpecker in latter November indicates a bias in species occurrence. The same perspective applies to the availability of only one record each for the Eastern Kingbird, Western Kingbird, American Crow, as well as the Brown Thrasher. Add in single reports of the Savannah Sparrow, Lincoln's Sparrow and White-crowned Sparrow. There was only one report of the American Goldfinch.

Each of these birds are relatively common in the area, yet rarely noted for the La Platte Bottoms as the focus is on shorebirds, waterbirds and waterfowl.

If there was greater access to the habitat of the area -especially the wooded areas - there would be a subsequent increase on the species reported.

Without the contributions of many area bird watchers, as expressed especially on the NEBirds online forum as well as personal bird surveys, this report could not have been prepared. The birders' efforts are gratefully acknowledged and appreciated as important contributions to ongoing history of ornithology in Nebraska, and since they indicate the value of the wild habitat remnants within the valley of the Missouri River.

There have been at least 144 different species recorded at the La Platte bottoms, since 1980 when local birders realized the place was a site that attracted birds of interest to watchers of the various species. Considering 2010 and 2011, the tally is 117 species.

This is a list of the species known to occur at the wetlands north of the Platte River confluence, during 2011.

Species with an asterisk (*) are new
additions for this locality

Greater White-fronted Goose
Snow Goose
Cackling Goose
Canada Goose
Gadwall
Eurasian Wigeon
American Wigeon
Mallard
Blue-winged Teal
Northern Shoveler
Northern Pintail
Green-winged Teal
Canvasback
Redhead
Ring-necked Duck
Lesser Scaup
Bufflehead
Ruddy Duck
Pied-billed Grebe
Horned Grebe
Eared Grebe
American White Pelican
Double-crested Cormorant
Least Bittern
Great Blue Heron
Great Egret
Green Heron
White-faced Ibis
Turkey Vulture
Bald Eagle
Northern Harrier *
Cooper's Hawk
Red-tailed Hawk
Golden Eagle *
American Kestrel
Peregrine Falcon
Sora
Common Moorhen
American Coot
American Golden-Plover
Semipalmated Plover
Killdeer
Black-necked Stilt *
Spotted Sandpiper
Greater Yellowlegs
Willet
Lesser Yellowlegs
Hudsonian Godwit
Sanderling
Semipalmated Sandpiper
Least Sandpiper
White-rumped Sandpiper
Baird's Sandpiper
Pectoral Sandpiper
Dunlin
Stilt Sandpiper
Long-billed Dowitcher
Wilson's Snipe
Wilson's Phalarope
Red-necked Phalarope
Franklin's Gull
Bonaparte's Gull *
Ring-billed Gull
Least Tern
Black Tern
Forster's Tern
Mourning Dove
Belted Kingfisher
Downy Woodpecker
Western Kingbird
Eastern Kingbird
American Crow *
Horned Lark
Purple Martin
Tree Swallow
Bank Swallow
Cliff Swallow
Barn Swallow
Eastern Bluebird
American Robin
Brown Thrasher *
European Starling
American Pipit
Yellow-rumped Warbler *
Savannah Sparrow
Lincoln's Sparrow
White-crowned Sparrow *
Red-winged Blackbird
Eastern Meadowlark
Yellow-headed Blackbird
Common Grackle
Great-tailed Grackle
Brown-headed Cowbird
American Goldfinch

24 September 2009

Platte River BioBlitz Records Diversity of Sanctuary Fauna and Flora

The diversity of Platte River birds and other fauna and flora was revealed during a BioBlitz held September 18-19 at Rowe Sanctuary in central Nebraska.

For one birder, participation required an early morning drive to be ready to look for different species once the sun broke the eastern horizon.

"The BioBlitz is a great way to combine study with public-education and I wanted to be a part of it," said Tim Hajda, of Broken Bow. "I always enjoy birding at Rowe Sanctuary, so when I heard that they were putting on a BioBlitz survey, I was excited to participate." Hajda, and his mother Lisa, drove 76 miles from their home near Broken Bow.

"Rowe Sanctuary captures the natural beauty of the Platte River and its birds in a way that few locations along the river can rival," Hajda said. "From the viewing blinds to the walking trails, it's always a relaxing place to go birding."

During his foray to look for birds from 7 a.m. to noon on Saturday, Hajda joined Rowe Sanctuary’s Office Manager Kent Skaggs, Rowe Sanctuary’s office manager and Letitia Reichart, an Assistant Professor of Biology at the University of Nebraska at Kearney, started at the Iain Nicolson Audubon Center and "hiked the trails that lead east and west of the center, adjacent to the river. Then we drove down to another trailhead farther downstream and walked a portion of that trail as well."

"The BioBlitz was a great way to get people engaged and taking action on the Platte River, allowing them to become familiar with the plants and animals that rely on the river," said Bill Taddicken, director of the Lillian Annette Rowe Bird Sanctuary, which is owned and managed by the National Audubon Society. "They can also become more connected to the need to preserve these natural places.”

"It was great to see such a good turnout for BioBlitz and the enthusiasm exhibited by the participants for the event."

The 48 volunteers "were invaluable to the success of the BioBlitz event," Taddicken said. "We had professors and students from the University of Nebraska at Kearney lending their knowledge and enthusiasm to impart a sense of importance and wonder to those people from the public that joined in this effort. All that attended were important whether they had expertise to identify species or if they just took home a better understanding of what the Platte River offers in terms of diversity of plants and animals and its many benefits to people.”

There were 54 bird species recorded.

  • American White Pelican
  • Great Blue Heron
  • Great Egret
  • Wood Duck
  • Turkey Vulture
  • Cooper's Hawk
  • Red-tailed Hawk
  • Bald Eagle
  • Osprey
  • Northern Bobwhite
  • Ring-necked Pheasant
  • Killdeer
  • Greater Yellowlegs
  • Mourning Dove
  • Great Horned Owl
  • Eastern Screech-Owl
  • Belted Kingfisher
  • Red-headed Woodpecker
  • Red-bellied Woodpecker
  • Downy Woodpecker
  • Hairy Woodpecker
  • Northern Flicker
  • Eastern Phoebe
  • Western Kingbird
  • Red-eyed Vireo
  • Warbling Vireo
  • Blue Jay
  • American Crow
  • Barn Swallow
  • White-breasted Nuthatch
  • House Wren
  • Marsh Wren
  • American Robin
  • Gray Catbird
  • Brown Thrasher
  • European Starling
  • Common Yellowthroat
  • Canada Warbler
  • Northern Cardinal
  • Rose-breasted Grosbeak
  • Blue Grosbeak
  • Indigo Bunting
  • Dickcissel
  • Spotted Towhee
  • Field Sparrow
  • Clay-colored Sparrow
  • Chipping Sparrow
  • Song Sparrow
  • Lincoln's Sparrow
  • Western Meadowlark
  • Red-winged Blackbird
  • Common Grackle
  • American Goldfinch
  • House Sparrow

Plants, insects, butterflies and small mammals were also surveyed during the 24-hour event.

The hightlight of the the bird survey for Hajda, was "watching a large flock of European Starlings defend themselves against a hungry Cooper's Hawk was a special sighting. The starlings flocked into a tight 'ball,' impenetrable by the hawk." He contributed his survey results - having noted 41 species - to EBird, and included an approximate number of each species noted.

Hajda believes "that all birders, wildlife professionals, or outdoor enthusiasts should participate in volunteer projects like these. Volunteer-effort studies, including Breeding Bird Atlas, Christmas Bird Counts and eBird, just to name a few, are indispensable, and have provided us with arguably the most valuable data on bird population and distribution in the history of bird study."

"Many of the participants said they are looking forward to the next one, which we intend on doing in the spring of 2010," Taddicken said.

The BioBlitz at Rowe Sanctuary was made possible through grant funds from Toyota, provided to the National Audubon Society through the "TogetherGreen" volunteer initiative, and then given to the local Audubon center.

Lisa and Tim Hajda and other bird watchers at the BioBlitz. Pictures courtesy of Rowe Sanctuary.

Collecting insects.

Recording data collected during the 24-hour BioBlitz

16 March 2008

Another Owl Species Noted for Spring Lake Park

[Aerial view of Spring Lake Park, Omaha]

A sighting of the Great Horned Owl has added an additional species to the tally of wildbirds noted at historic Spring Lake Park, in southeast Omaha.

The big owl was noted on 15 March 2008 during a morning bird survey.

After an evaluation of the overall species tally for this locale, it became apparent this was a record of occurrence for a new species in the park environs. The Great Horned Owl is the 103rd species that has been noted by records dating back to the 1920s.

Most of the bird species have been noted since 2000.

During the most recent walk about, an owl was first flushed from the northern portion of the park woodlands. The bird flew northward, and was then flushed again and flew southward, just above the treetops, instead of going further north, which would have required flying over a major Interstate thoroughfare.

When returning to the portion of the park closer to F Street, an owl was again seen in the distance, and with the help of a spotting scope, was identified as a horned owl.

South of F Street, another owl was seen, and was also identified with the assistance of the scope. It was a Barred Owl, which has been noted at the park on several previous occasions.

The northern section of Spring Lake Park is predominantly woodland.

"Although Spring lake is disturbed in some parts, it still contains many old red and bur oaks, some beautiful shagbark hickory, some beautiful stands of red haw, and many vines, particularly blue bead and moonseed vine," according to Dr. David Sutherland, a botany professor at the University of Nebraska at Omaha. Especially notable are "good stands of herbaceous flora such as Eupatorium purpureum, Helianthus hirsutus, Cacalia atriplicifolia, and Teucrium canadense."

"Springlake is a unique city park because it contains remnants of original forest," Sutherland said. "I have long felt that the park is an under appreciated treasure."

This is a list of the species and the decade observed for the modern-era period at the park. The value given indicates the number of times a species was noted during a particular year.

Common Name

1979

1986

1998

1999

2000

2001

2002

2003

2004

2005

2006

2008

Snow Goose *

-

-

-

-

1

-

-

-

-

-

-

-

Canada Goose *

-

-

-

-

-

1

-

-

-

-

-

-

Wood Duck

-

-

-

-

1

1

-

-

-

-

-

-

Wild Turkey

-

-

-

-

1

-

-

1

-

-

1

-

Double-crested Cormorant *

-

-

-

-

-

-

1

-

-

-

-

-

American Bittern

-

-

-

-

-

1

-

-

-

-

-

-

Great Blue Heron

-

-

-

-

-

1

-

2

-

-

-

-

Great Egret *

-

-

-

-

-

-

1

-

-

-

-

-

Turkey Vulture

-

-

-

-

-

-

1

6

-

-

-

-

Bald Eagle *

-

-

-

-

-

-

-

-

1

-

-

-

Sharp-shinned Hawk

-

-

-

-

-

1

-

6

-

-

-

-

Cooper's Hawk

-

-

-

-

-

-

-

-

1

-

-

-

Red-tailed Hawk

-

-

-

-

1

-

1

7

3

1

1

1

American Kestrel

-

-

-

-

-

-

1

1

1

-

-

-

Killdeer

-

1

-

-

-

-

-

-

-

-

-

-

American Woodcock

-

-

-

-

-

-

-

3

-

-

-

-

Franklin's Gull *

-

-

-

-

-

-

1

-

-

-

-

-

Ring-billed Gull *

-

-

-

-

-

-

1

-

-

-

-

-

Rock Pigeon

-

-

-

-

2

-

-

8

1

1

-

-

Mourning Dove

-

-

-

-

1

-

-

20

7

3

1

1

Yellow-billed Cuckoo

-

-

-

-

-

1

-

-

-

-

-

-

Eastern Screech-Owl

-

-

1

-

-

-

-

-

-

-

-

-

Great Horned Owl

-

-

-

-

-

-

-

-

-

-

-

1

Barred Owl

-

-

-

-

2

1

1

3

1

-

-

1

Common Nighthawk

-

-

-

-

-

1

-

2

-

-

-

-

Chimney Swift

-

-

-

-

1

1

1

9

1

-

-

-

Red-headed Woodpecker

-

-

-

-

1

1

-

5

1

-

-

-

Red-bellied Woodpecker

-

-

-

-

2

-

-

21

8

2

2

1

Yellow-bellied Sapsucker

-

-

-

1

-

-

-

-

-

-

-

-

Downy Woodpecker

-

-

-

-

2

-

1

21

6

1

2

1

Hairy Woodpecker

-

-

-

-

1

-

-

7

3

1

-

-

Northern Flicker

-

-

-

-

2

-

2

22

6

-

-

-

Olive-sided Flycatcher

-

-

-

-

-

-

1

-

-

-

-

-

Eastern Wood-Pewee

-

-

-

-

-

1

-

3

-

-

-

-

Least Flycatcher

-

-

-

-

-

1

-

1

-

-

-

-

Eastern Phoebe

-

-

-

-

-

-

1

-

-

-

-

-

Great Crested Flycatcher

-

-

-

-

-

1

-

4

1

-

-

-

Blue-headed Vireo

-

-

-

-

-

-

1

-

-

-

-

-

Warbling Vireo

-

-

-

-

-

1

-

-

-

-

-

-

Philadelphia Vireo

-

-

-

-

-

-

1

-

-

-

-

-

Red-eyed Vireo

-

-

-

-

1

1

-

2

-

-

-

-

Blue Jay

-

-

-

-

2

-

2

21

6

-

2

-

American Crow

-

-

-

-

2

-

1

17

2

-

-

1

Northern Rough-winged Swallow

-

-

-

-

1

-

-

-

-

-

-

-

Barn Swallow

-

-

-

-

1

-

-

3

-

-

-

-

Black-capped Chickadee

-

-

-

-

2

-

2

22

7

1

2

1

Tufted Titmouse

-

-

-

-

2

-

1

13

1

-

-

-

Red-breasted Nuthatch

-

-

-

-

1

-

-

-

-

-

-

-

White-breasted Nuthatch

-

-

-

-

2

-

2

22

8

-

2

1

Brown Creeper

1

-

-

-

1

-

-

11

5

1

-

-

Carolina Wren

-

-

-

-

3

-

-

7

4

1

1

1

House Wren

-

-

-

-

1

-

2

8

-

-

-

-

Winter Wren

-

-

-

-

-

-

-

6

6

3

1

-

Golden-crowned Kinglet

1

-

-

-

1

-

-

-

-

1

-

-

Ruby-crowned Kinglet

-

-

-

-

1

-

1

5

-

-

-

-

Blue-gray Gnatcatcher

-

-

-

-

-

1

-

-

-

-

-

-

Swainson's Thrush

-

-

-

-

-

1

-

1

-

-

-

-

Hermit Thrush

-

-

-

-

-

-

-

1

-

-

-

-

American Robin

-

-

-

-

2

-

2

21

5

-

1

1

Gray Catbird

-

-

-

-

1

1

-

7

1

-

-

-

Brown Thrasher

-

-

-

-

1

-

1

4

1

-

-

-

European Starling

-

-

-

-

2

-

1

16

6

-

1

-

Cedar Waxwing

-

-

-

-

-

1

-

1

-

-

-

-

Tennessee Warbler

-

-

-

-

-

1

-

1

-

-

-

-

Orange-crowned Warbler

-

-

-

-

1

1

-

-

-

-

-

-

Nashville Warbler

-

-

-

-

1

1

-

-

-

-

-

-

Yellow Warbler

-

-

-

-

-

1

-

-

-

-

-

-

Yellow-rumped Warbler

-

-

-

-

1

1

-

1

-

-

-

-

Black-throated Green Warbler

-

-

-

-

1

1

-

-

-

-

-

-

Black-and-white Warbler

-

-

-

-

2

1

-

-

-

-

-

-

American Redstart

-

-

-

-

1

-

-

-

-

-

-

-

Ovenbird

-

-

-

-

-

-

-

2

1

-

-

-

Common Yellowthroat

-

-

-

-

-

1

-

-

-

-

-

-

Wilson's Warbler

-

-

-

-

-

-

1

-

-

-

-

-

Scarlet Tanager

-

-

-

-

-

1

-

-

-

-

-

-

Spotted Towhee

-

-

-

-

-

1

-

-

-

-

-

-

Eastern Towhee

-

-

-

-

-

-

1

1

-

-

-

-

American Tree Sparrow

-

-

-

-

-

-

-

2

-

-

-

-

Chipping Sparrow

-

-

-

-

1

-

1

6

1

-

-

-

Field Sparrow

-

-

-

-

-

-

1

-

-

-

-

-

Fox Sparrow

-

-

-

-

2

-

-

2

-

-

-

-

Song Sparrow

-

-

-

-

-

-

1

-

-

-

-

-

Lincoln's Sparrow

-

-

-

-

-

-

1

-

-

-

-

-

White-throated Sparrow

-

-

-

-

1

-

1

9

2

-

-

-

Harris's Sparrow

-

-

-

-

-

1

-

1

-

-

-

-

White-crowned Sparrow

-

-

-

-

-

-

1

-

-

-

-

-

Dark-eyed Junco

-

-

-

-

1

-

1

11

7

1

1

1

Northern Cardinal

-

-

-

-

2

-

2

21

7

1

1

1

Rose-breasted Grosbeak

-

-

-

-

-

-

1

-

-

-

-

-

Indigo Bunting

-

-

-

-

-

1

-

3

-

-

-

-

Red-winged Blackbird

-

-

-

-

-

1

-

-

-

-

-

-

Rusty Blackbird

-

-

-

-

-

-

1

-

-

-

-

-

Brewer's Blackbird

-

-

-

-

-

1

-

-

-

-

-

-

Common Grackle

-

-

-

-

2

-

1

10

1

-

-

-

Brown-headed Cowbird

-

-

-

-

-

-

1

6

-

-

-

-

Baltimore Oriole

-

-

-

-

-

1

-

2

-

-

-

-

Purple Finch

-

-

1

-

-

-

-

8

3

-

-

-

House Finch

-

-

-

-

1

-

-

4

2

-

1

-

Common Redpoll

-

-

-

-

-

-

-

-

1

-

-

-

Pine Siskin

-

-

-

-

-

-

1

-

-

-

-

-

American Goldfinch

-

-

-

-

3

-

1

19

5

1

2

1

House Sparrow

-

-

-

-

2

-

-

16

4

-

-

-

* Indicates a species typically seen in the air space above the parkland.

This list was prepared using records contributed by a couple of members of the Audubon Society of Omaha, Nebraska.

The first bird note from this locale was the Red-bellied Woodpecker noted in November 1925. Several additional records from the 1930s noted these species: American Crow, Black-capped Chickadee, Brown Creeper, Carolina Wren, Dark-eyed Junco, Downy Woodpecker, Hairy Woodpecker, Red Crossbill, Red-bellied Woodpecker, Red-headed Woodpecker, and White-breasted Nuthatch.