Wednesday, September 03, 2008

Songbird Migration mid-season update (Lucky Peak)

Hi Folks

On Sunday evening I added up the season totals for our songbird captures through Aug 31 - which is the mid-point of our season.

Totals so far (July 16 through Aug 31):

2487 birds of 43 species

TOP TEN:
1) Nashville Warbler 240
2) MacGillivray's Warbler 234
3) Dusky Flycatcher 228
4) Yellow Warbler 212 (2nd best season-total; after record year in 2007)
5) "Audubon's" Yellow-rumped Warbler 193
5) Western Tanager 193
7) Chipping Sparrow 182
8) Ruby-crowned Kinglet 151
9) Spotted Towhee 121
10) Pine Siskin 102

HIGHLIGHTS:
Willow Flycatcher (2)
Gray Flycatcher (2)
Broad-tailed Hummingbird (2)

In sum, after a slow start, it actually was a pretty impressive 1st half of the season (better than average). The 2008 totals are ~ 400 birds & 9 species fewer than at the same point of the 2007 season (see my blog post from 9-2-07) but still some good numbers of many species. And, I expect the diversity will climb as we head into September.

A few pics:
An adult female Wilson's Warbler - note the pretty extensive crown patch but with a lot of green/yellow feather tips.

An immature male Wilson's Warbler - note the similarly extensive crown patch that is glossier black (than the adult female above) and has the green/yellow feather tips mostly confined to the rear of the crown.

An immature Dusky Flycatcher - note the greenish back, greenish-gray head, moderate-sized bill, and relatively short wing extension.

Cheers,

Jay

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Mission: to contribute to the conservation of western migratory landbirds through cooperative research and public education