ACES // Pitkin County Open Space Birding: North Star Nature Preserve 5/29/2024

Rebecca Weiss

May 30, 2024

ACES // Pitkin County Open Space Birding: North Star Nature Preserve 5/29/2024

Wednesday, May 29, 2024, 7:00-9:30am
Weather: Sunny
Location: North Star Nature Preserve (James Smith Property), Aspen, CO


Nesting season is in full swing at North Star! Violet-green and Tree swallows were very active in the riverside stands of cottonwoods, claiming old woodpecker holes for their nest sites. We observed one Tree swallow that flew low, picking up a bit of dry grass in its bill and taking it to a nesting cavity. Other highlights included an abundance of Great blue herons that were seen flying high going up- or down valley, and others that were foraging along the river. One heron perched in a dead snag within the former heron rookery. Two Spotted sandpipers were active along the sandy riverbanks, and Yellow and Wilson’s warblers foraged in the willows. A female hummingbird, likely a Broad-tailed, flew in to hover near the colorful clothing of one of our birders. We learned about field craft and the process of working toward a positive ID with sparrows and finches. The history and habitats of North Star Nature Preserve were shared as well. Join us on June 4th for Morning Birding at Hallam Lake!

Species List:

Canada Goose
Broad-tailed Hummingbird
Spotted Sandpiper
Great Blue Heron
Western Flycatcher
Black-billed Magpie
American Crow
Common Raven
Tree Swallow
Violet-green Swallow
Black-capped Chickadee
House Wren
Ruby-crowned Kinglet
American Robin
House Finch
Pine Siskin
Fox Sparrow
Song Sparrow
Lincoln’s Sparrow
Red-winged Blackbird
Brown-headed Cowbird
Orange-crowned Warbler
Yellow Warbler
Wilson’s Warbler

~ Rebecca Weiss, ACES Bird Guide

Featured photo: House wren.

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