"On January 23, 2012, in Mulberry, Florida, the Postal Service™ will issue a Purple Martin stamped envelope (Forever® priced at 45 cents)."The U.S. Postal Service® celebrates the largest swallow in North America with issuance of Purple Martin Stamped Envelope. The highly realistic stamp art includes a large illustration of a purple martin perching and a smaller illustration showing the bird in flight. Art director William J. Gicker designed the stamps, using illustrations by artist Matthew Frey."
It seem appropriate that it says "Forever U.S.A." and though this is provided for service reasons, it seems to be an appropriate statement regarding this iconic species that will hopefully be forever enjoyed.