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crepidula2000
Jul 23, 20244 min read
Birding 101
I sometimes teach an introductory course on birds and birdwatching I call “Birding 101.” I know some readers may already be active...
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crepidula2000
Jun 26, 20243 min read
Feathers: A Structural Marvel
Feathers are one of the most remarkable structural engineering feats of nature. They are extremely light weight, while incredibly strong...
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crepidula2000
May 20, 20242 min read
The Rugged Little Anna’s Hummingbird
Mountain environments, including here in the San Bernardino Mountains, are often regarded as harsh and unforgiving. It takes a certain...
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crepidula2000
Apr 22, 20243 min read
Meet Ezra Murray
I recently had the good fortune to become acquainted with a remarkable young man by the name of Ezra Murray. Ezra is 16 years old and...
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crepidula2000
Mar 12, 20243 min read
Take These Mountains for a Spin
My blog posts typically focus on birds that inhabit the San Bernardino Mountains and the adjacent mountain ranges. Today I’m going to...
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crepidula2000
Jan 22, 20243 min read
The Confusing Junco
One of our most common birds here in the San Bernardino Mountains is a small member of the sparrow family called the dark-eyed junco...
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crepidula2000
Dec 31, 20233 min read
The Cormorant's Dilemma
Imagine you are a bird who makes its living in the water. Or more precisely, underwater. You want to be as efficient as possible...
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crepidula2000
Nov 18, 20232 min read
Nature's Barometer
As I sit here at my computer observing the chickadees, pine siskins, and nuthatches that dart to and from the feeder outside my window, I...
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crepidula2000
Oct 30, 20232 min read
Winter, Ducks, and Cold Feet
Lake Arrowhead, nestled at 5,200 feet in the San Bernardino Mountains, is home to a variety of waterfowl that migrate south to escape...
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crepidula2000
Sep 17, 20233 min read
Why Birds Migrate (Part II)
In my last blog, I discussed the various categories of migratory birds that can be seen at Lake Arrowhead, here in Southern California’s...
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crepidula2000
Sep 1, 20232 min read
Why Do Birds Migrate? (Part I)
Autumn will soon be upon us, and if you’re bird watcher, people will commonly ask you, “Why do birds fly south for the winter?” My stock...
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crepidula2000
Jul 27, 20232 min read
The Omnipresent Steller's Jay
For those of us who live here in the San Bernardino Mountains, the Steller’s jay might be the most emblematic bird species of the region....
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crepidula2000
Jul 5, 20233 min read
The Woodpecker's Beak
Of the 14 species of woodpeckers (including sapsuckers, which are woodpeckers that specialize in feeding on sap) that are found in...
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crepidula2000
Jun 27, 20232 min read
Ravens and Crows
The American crow (Corvus brachyrhynchos) and common raven (Corvus corax) are members of the corvid family, which also includes jays and...
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crepidula2000
Apr 30, 20231 min read
Spring Migration in Full Swing
Warmer weather is finally upon us here in the mountains of Southern California and spring migration is in high gear, with three to four...
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crepidula2000
Apr 19, 20231 min read
Keeping an Eye on Bird Migration
There is a very cool website run by the folks at the Cornell Ornithology Lab and Colorado State University. It's called BirdCast, and it...
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crepidula2000
Apr 19, 20231 min read
Spring Comes Late to the Mountains
California was hit by a relentless series of storms known as an atmospheric river this winter that resulted in record levels of...
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crepidula2000
Jan 12, 20232 min read
Winter Birding in the Mountains
Winter is in full force here in the San Bernardino Mountains. It can be a little cold, but winter birding is hot! While much of the...
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