COBirders, In the did you know category...
The 19 individual Williamson’s Sapsuckers (Sphyrapicus thyroideus) on the Penrose CBC is the highest total ever recorded for the species anywhere in the U.S. or Canada during the 111 seasons of CBCs. The previous high count was 15 individuals on a Lake Almanor CBC (near Chester, CA). The CA birds are of the western subspecies (S. t. thyroideus), largely a resident and thought to be an altitudinal migrant. CO breeders are the eastern subspecies (S. t. nataliae), described as a latitudinal migrant and thought to mostly leave CO. The high count in the U.S. last year was 7 WISAs at the Sandia Mountains CBC in New Mexico. Because of the extreme sexual dimorphism in this species, the first described bird in 1852, a female (first called Black-breasted Woodpecker, then Brown-headed Woodpecker, and then Round-headed Woodpecker) was considered a separate species from the male (first found in 1857 and called Williamson’s Woodpecker) until 1873 when the two sexes were found together at a nest in Colorado. This information was gleaned from “Birds of North America online” and from the “110th Christmas Bird Count Summary.” Bill Maynard Colorado Springs ____________________________________________________________ SHOCKING: iPad for $22.53 - 95% Off Online Auction giving iPads, TVs, Macbooks at 95% Discount http://thirdpartyoffers.juno.com/TGL3141/4d118e48878a07c5928st03duc -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/cobirds?hl=en.
