Morning Birding at Rock Bottom Ranch Species List | August 21, 2018

ACES Staff

August 21, 2018

Morning Birding at Rock Bottom Ranch Species List | August 21, 2018

Tuesday, August 21, 2018, 7:30AM – 10:30AM
Weather: Partly sunny, brief rain showers
Location: Rock Bottom Ranch and Rio Grande Trail

Species Identified    

Canada Goose
Rock Pigeon
Eurasian Collared-Dove
Black-chinned Hummingbird
Broad-tailed Hummingbird
Rufous Hummingbird
Great Blue Heron
Turkey Vulture
Golden Eagle
Red-tailed Hawk
Lewis’s Woodpecker
Northern Flicker
Western Wood-Pewee
Cordilleran Flycatcher
Western Kingbird
Warbling Vireo
Black-billed Magpie
American Crow
Violet-green Swallow


Northern Rough-winged Swallow
Barn Swallow
Black-capped Chickadee
White-breasted Nuthatch
House Wren
American Robin
Gray Catbird
Cedar Waxwing
House Finch
Lesser Goldfinch
Spotted Towhee
Chipping Sparrow
Song Sparrow
Bullock’s Oriole
Red-winged Blackbird
Yellow Warbler
Wilson’s Warbler
Western Tanager
Black-headed Grosbeak
Lazuli Bunting


Bird activity this morning was very busy! Highlights were vocal families of Red-tailed Hawks and Ospreys, two juvenile Golden Eagles (white at base of tail was clearly visible and exciting to see!), and Northern Flickers.  We were able to study the subtle field marks of a juvenile Osprey: buffy ‘chevrons’ or feather edges of contour feathers and brown iris color. Many young birds were on the wing, including American Robins, Spotted Towhees, Warbling Vireos, and Bullock’s Orioles. A male Lazuli Bunting gave us another excellent study opportunity with straight-on, back, and side views of this distinctive species. Non-singing Warbling Vireos seemed to be flocking together, perhaps feeding as a group and preparing to migrate. Swallows were present, although in fairly low numbers as these birds are gradually departing the valley. We covered some basic field craft tips for new birders (most useful tip of the day: lock eyes on a bird, then bring binoculars up to eyes), and talked about the upcoming Yampa Valley Crane Festival next week in Steamboat Springs as a fun Colorado birding event to consider attending. Join us next Tuesday for Morning Birding at Hallam Lake!

~ Rebecca Weiss, ACES Bird Guide 


Photo by Dale Armstrong

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