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Thursday, September 1, 2011

Teslin Lake update - August 31st


From Aug 26th through Aug 31st Teslin Lake averaged 59.6 birds/day and 0.473 birds/net-hour for a total of 358 birds banded. Four new species for the season were banded: American Tree Sparrow on the 27th, Olive-sided Flycatcher on the 28th, Merlin on the 29th, and Townsend's Solitaire on the 31st. The Merlin was the first one banded at the observatory, the Solitaire the second and the Olive-sided was the first one in the fall! The top five species banded during the period were Alder Flycatcher (134), Dark-eyed Junco (49), Yellow Warbler (41), Boreal Chickadee (29), and Yellow-rumped Warbler (19). The current season top five species banded are Alder Flycatcher (597), Yellow Warbler (272), Dark-eyed Junco (120), Yellow-rumped "Myrtle" Warbler (91), and Swainson's Thrush (81).

The first Western Sandpiper for the observatory, a juvenile, spent the early morning of the 26th at the creek mouth and a juvenile Sanderling stopped briefly at the same spot on the 31st. The 29th was the most exciting day of the season so far. A front passed overnight and in the morning the wind was blowing gently from northwest bringing tons of Greater White-fronted Geese and the first decent raptor flight with it. The total for the geese was a new area fall record of 7900! Northern Harrier (34) was the most numerous species of the 130 raptors closely followed by Red-tailed Hawk (33). Amazingly the flight included 21 Swainson's Hawks! Also of interest was the season 1st flock of five Sandhill Cranes. The season first Pectoral Sandpiper was seen on the 30th and Killdeer and Wilson's Snipe on the 31st. Boreal Chickadees and Three-toed Woodpeckers are still moving but the numbers have remained low. Pine Siskin still dominates the visible passerine migration.


Western Sandpiper


Sanderling


Heavily cropped "docu" shot of a flock of 8 Swainson's Hawks


Olive-sided Flycatcher


Kelly and her magical Merlin


"I can't believe I get to band this" -Shyloh and Solitaire

Photos ©Jukka Jantunen

The complete list of bird banded at Teslin Lake Bird Observatory this season as of August 31st (the last 6 days in brackets).

Sharp-shinned Hawk - 3
Merlin - 1 (1)
Spotted Sandpiper - 2
Solitary Sandpiper - 3
Belted Kingfisher - 6 (1)
Yellow-bellied Sapsucker - 3
Downy Woodpecker - 5
Northern Flicker - 1
Olive-sided Flycatcher - 1 (1)
Western Wood-Pewee - 10 (7)
Yellow-bellied Flycatcher - 6 (1)
Alder Flycatcher - 597 (134)
Least Flycatcher - 10
Hammond's Flycatcher - 27 (3)
Dusky Flycatcher - 6 (1)
Northern Shrike - 1
Warbling Vireo - 16
Black-capped Chickadee - 43 (7)
Boreal Chickadee - 54 (29)
Red-breasted Nuthatch - 5
Golden-crowned Kinglet - 1
Ruby-crowned Kinglet - 12 (1)
Townsend's Solitaire - 1 (1)
Swainson's Thrush - 81 (4)
Hermit Thrush - 3 (1)
American Robin - 11
Bohemian Waxwing - 1
Tennessee Warbler - 4
Orange-crowned Warbler - 36 (10)
Yellow Warbler - 272 (41)
Yellow-rumped "Myrtle" Warbler - 91 (19)
Yellow-rumped "Audubon's" Warbler -1
Townsend's Warbler - 4
Blackpoll Warbler - 56 (4)
American Redstart - 34 (2)
Northern Waterthrush - 42 (2)
Common Yellowthroat - 45 (7)
Wilson's Warbler - 57 (8)
American Tree Sparrow - 4 (4)
Chipping Sparrow - 27 (1)
Brewer's Sparrow - 1
Savannah Sparrow - 13 (1)
Fox Sparrow - 8 (5)
Lincoln's Sparrow - 12 (5)
White-crowned Sparrow - 26 (6)
Slate-colored Junco - 120 (49)
Rusty Blackbird - 3 (1)
Brown-headed Cowbird - 1
Purple Finch - 1
White-winged Crossbill - 1
Common Redpoll - 4
Pine Siskin - 7 (1)
= 1780 (358) birds of 51 species
0.356 (0.473) birds/net-hour




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