Tim Koopmann owner and fourth generation rancher in eastern Alameda County
open his ranch to Ohlone Audubon today.
The ranch is 900 acres of rolling hills - oak savanna habitat along HY680
between Sunol and Pleasanton.
Within the tucks and folds of the hills are mature oak and sycamore forests.
With no wind to speak of the birding conditions were good, even on the
ridge tops.
Ohlone member Irv Thiessen has placed 80+ Bluebird nest boxes on Tim's
ranch over several years .
Irv lead us to a number of the boxes were he has nesting Bluebirds, Tree
Swallows and American Kestrels.
Also we viewed a family of Golden Eagles and their nest which Tim Koopmann
told us has been active for eight years.
44 Species were recorded:
Western Bluebirds 24+
House Finches 20
Horned Larks 11
MeadowLarks 10
Mourning Doves 2
American Wigeon 2
Greater Yellowlegs 1
American Ravens 8
White-throated Swift 1
Tree Swallows 60
Barn Swallow 1
Violet-green Swallow 1
Northern Rough-winged Swallows 11
Gull spices in flight 25
Western Scrub Jay 7
Sterling 30
Anna's Humming bird 1
Allen's Humming bird 1
Acorn Woodpeckers 1
Nuttall Woodpecker 1
Northern Flicker 1
Loggerhead Shrike 1
Lesser Goldfinch 2
Great Blue Heron 1
Coot 1
Mallards 4
Killdeer 2
Redwing Birds 6
Black Phoebe 1
White-breasted Nuthatch 1
Oak Titmouse 1
Harrier 1
American Kestrels 4
Red-tailed Hawks 6
Turkey Vultures 9
Bullocks Oriole 1
Western Kingbird 1
Savanna Sparrows 4
Golden-crown Sparrows 7
White-crown Sparrow 1
Yellow-rumped Warbler 1
Wrentit 1
Golden Eagles 3 (2 adults, 1 juvenile)
Yellow-billed Magpies 10
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