2010 Chatham County Fall Bird Count

by Will Cook

This year's count held great promise, as the drought created some great shorebird habitat at Falls Lake, but at Jordan Lake the mudflats were just barely beginning to emerge, so the shorebird count was good, but not spectacular. Last year we had extensive mudflats and had an astounding 130 species on the count. This year with high water and hot, dry weather, the birding was just so-so and we ended up with an even hundred species (average 104.5). The lake level was 214.6 feet above sea level, 1.7 feet below average for the count. Extensive mudflats generally appear when the lake level is around 214 feet. The warm, sunny weather kept land bird activity low. This year's count of 2603 individuals is far below the average of 3684 and less than half of last year's record-breaking total. Observer effort was a little below average, with 62.25 party-hours (average 67.4), yet we still ended up with a near record number of birds per party-hour, 72 (average 54).

One species was new to the count: a Prothonotary Warbler graced the NC 751 causeway over Jordan Lake, seen by Will Cook's party. This is a long-overdue first - they're fairly common in the area during breeding season. Other rarities included 3 Northern Shovelers (4th count record), a Song Sparrow (common in winter, but just the 4th record for the fall count), and an Orchard Oriole, which like Prothonotary is common here in summer, but rare this late (4th count record).

We set just a few record highs: 37 Bald Eagles (average 12), 6 American Kestrels (1.7), 7 Eastern Screech-Owls (2.7), and 45 Red-headed Woodpeckers (20).

No record lows this year, but Canada Geese were in short supply: 15 (average 62).

While shorebirds weren't around in great numbers, we did get 9 species, well above the average of 6. We only managed 16 warbler species, below the average of 18. The 224 warblers counted is far below the average 338. Birds per party-hour was the second-lowest at 41.8 (average 56.1).

Teams with the highest counts: Will Cook's party of six birders, covering the NC 751 area, came in first in both species (64, 25 below last year's count for this area) and individuals (675, less than half last year's count for the area). Doug Shadwick's party, covering the Morgan Creek and western New Hope Creek mudflats from Old Hope Valley Farm Road, came in second with 57 species and 476 individuals.

Here's the full count:

15	Canada Goose
9	Wood Duck
29	Mallard
23	Blue-winged Teal
3	Northern Shoveler
41	Double-crested Cormorant
60	Great Blue Heron
175	Great Egret
59	Black Vulture
111	Turkey Vulture
20	Osprey
37	Bald Eagle  16 ad., 21 imm.
1	Cooper's Hawk
9	Red-shouldered Hawk
1	Broad-winged Hawk
5	Red-tailed Hawk
6	American Kestrel
4	Semipalmated Plover
54	Killdeer
2	Greater Yellowlegs
10	Lesser Yellowlegs
2	Solitary Sandpiper
4	Spotted Sandpiper
8	Least Sandpiper
5	Pectoral Sandpiper
2	Wilson's Snipe
3	Caspian Tern
2	Forster's Tern
76	Mourning Dove
4	Yellow-billed Cuckoo
7	Eastern Screech-Owl
1	Great Horned Owl
5	Barred Owl
5	Whip-poor-will
2	Chimney Swift
16	Ruby-throated Hummingbird
8	Belted Kingfisher
45	Red-headed Woodpecker
62	Red-bellied Woodpecker
39	Downy Woodpecker
4	Hairy Woodpecker
18	Northern Flicker
14	Pileated Woodpecker
10	Eastern Wood-Pewee
12	Eastern Phoebe
3	Great Crested Flycatcher
21	White-eyed Vireo
2	Yellow-throated Vireo
9	Red-eyed Vireo
86	Blue Jay
171	American Crow
11	Fish Crow
156	Carolina Chickadee
163	Tufted Titmouse
30	White-breasted Nuthatch
46	Brown-headed Nuthatch
90	Carolina Wren
2	House Wren
14	Blue-gray Gnatcatcher
1	Ruby-crowned Kinglet
60	Eastern Bluebird
1	Veery
2	Swainson's Thrush
4	American Robin
14	Gray Catbird
11	Northern Mockingbird
6	Brown Thrasher
36	European Starling
2	Tennessee Warbler
18	Northern Parula
4	Yellow Warbler
3	Chestnut-sided Warbler
7	Magnolia Warbler
2	Black-throated Blue Warbler
3	Blackburnian Warbler
2	Yellow-throated Warbler
91	Pine Warbler
5	Palm Warbler
16	Black-and-white Warbler
24	American Redstart
1	Prothonotary Warbler
5	Ovenbird
14	Northern Waterthrush
27	Common Yellowthroat
10	Summer Tanager
6	Scarlet Tanager
16	Eastern Towhee
1	Song Sparrow
43	Chipping Sparrow
1	Field Sparrow
103	Northern Cardinal
2	Rose-breasted Grosbeak
38	Blue Grosbeak
68	Indigo Bunting
1	Bobolink
1	Red-winged Blackbird
50	Common Grackle
1	Orchard Oriole
7	House Finch
64	American Goldfinch

100 species
2603 individuals

Effort: 17 counters in 10 parties. 62.25 party hours (50.5 foot, 6.75 car, 5 boat), 99.75 party miles (29.75 foot, 62 car, 8 boat). Owling 3 hours, 25.5 mile.

Weather: temp 66-86 F, wind NE 5-10 mph, no precip, clear, lake level 214.6'

Thanks for your help, counters!

Will Cook, compiler

Detailed Results (PDF format)

Chapel Hill Bird Club