Sunday, December 15, 2024 Bird Walk to Sandstone Ranch

December 17, 2024

On a beautiful, but windy, Sunday morning, we convened at Sandstone Ranch in Longmont. Sandstone Ranch is named for the sandstone cliffs in the area which formed when Colorado was part of an inland sea. The ranch itself was owned by the Coffin family back in the 1860’s. The original house, which still stands, is currently in use as the park’s visitor center.

Non-breeding American Goldfinch. Photo by Jamie Simo.

Wind is some of the worst weather for birding because it tends to suppress the movement of smaller birds but, happily, around the windbreak of the cliffs we did see some White-crowned Sparrows, an American Goldfinch, and a Northern Flicker. A common misconception is that American Goldfinches migrate because in the winter they’re less visible, being more of a drab olive-brown color rather than yellow. However, they’re resident birds here along the Front Range. Listen for their squeaky little chirps or their “potato chip” flight calls.

Kiting female American Kestrel. Photo by Matt Eagen.

We had several raptors on our walk, including three Red-tailed Hawks, a Northern Harrier, and a very obliging female American Kestrel. Kestrels, our smallest falcon, are one of the few raptors known to hover, meaning they will rapidly flap their wings to remain in place in the air. Hummingbirds also do this as will Belted Kingfishers. However, this particular kestrel wasn’t hovering, but kiting, which is using the wind to stay aloft rather than flapping.

Snow Goose flock. Photo by Matt Robinson.

Finally, we had some great waterfowl. While the majority of ducks we saw were Mallards, we did see both a pair of American Wigeon and Wood Ducks. We also had several thousand Cackling and Canada Geese, a couple of Ross’s Geese, and a good number of Snow Geese in the agricultural fields next to the Peschel Open Space, another natural area adjacent to Sandstone Ranch. Snow Geese are named for their, often, snowy-white plumage, but Snow Geese can also come in a “blue” color phase, where the majority of their feathers are a slatey-grey or “blue” color. Because of the warming of the arctic, Snow Geese are increasing in number rather than declining like many other bird species.

Because of the wind we only saw 18 species, but it was a beautiful day and great company. Hopefully you can join us next time!

Sandstone Ranch (Weld Co.), Weld, Colorado, US
Checklist Comments:     Also included Peschel.
18 species

Snow Goose  10
Ross’s Goose  2
Cackling Goose  2000
Canada Goose  100
Wood Duck  2     Pair. Seen last Sunday as well.
American Wigeon  2
Mallard  215
Northern Harrier  1
Red-tailed Hawk  3
Belted Kingfisher  1
Northern Flicker  2
Blue Jay  2
American Robin  1
House Finch  2
American Goldfinch  2
White-crowned Sparrow  4
Song Sparrow  1
Red-winged Blackbird  105

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