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David Allen Sibley

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David Allen Sibley


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David Allen Sibley isn't a Goodreads Author (yet), but they do have a blog, so here are some recent posts imported from their feed.

Identification of the newest meadowlark – Chihuahuan

In their 2022 checklist supplement the AOS voted to elevate the southwestern populations of Eastern Meadowlark to a full species, with the name Chihuahuan Meadowlark. it’s been recognized as a distinctive population for decades, usually under the name Lilian’s Meadowlark, but making it a full species raises the stakes and adds new emphasis to a …

Identification of the newest meadowlark – Chihuahu

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Published on September 19, 2022 09:34
Average rating: 4.53 · 9,712 ratings · 756 reviews · 52 distinct worksSimilar authors
The Sibley Guide to Birds

4.69 avg rating — 2,464 ratings — published 2000 — 14 editions
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What It's Like to Be a Bird...

4.40 avg rating — 1,831 ratings — published 2020 — 8 editions
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The Sibley Field Guide to B...

4.65 avg rating — 1,455 ratings — published 2003 — 6 editions
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The Sibley Guide to Bird Li...

4.46 avg rating — 1,127 ratings — published 2001 — 11 editions
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The Sibley Field Guide to B...

4.71 avg rating — 989 ratings — published 2003 — 7 editions
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Sibley's Birding Basics: Ho...

4.22 avg rating — 845 ratings — published 2002 — 13 editions
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The Sibley Birder's Life Li...

4.48 avg rating — 42 ratings
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Birds of Instagram: Extraor...

4.25 avg rating — 28 ratings2 editions
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The North American Bird Guide

4.86 avg rating — 22 ratings — published 2000 — 6 editions
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The Trees of North America:...

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4.43 avg rating — 21 ratings2 editions
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More books by David Allen Sibley…
Quotes by David Allen Sibley  (?)
Quotes are added by the Goodreads community and are not verified by Goodreads. (Learn more)

“The Peregrine Falcon is the fastest animal in the world, capable of speeds of at least 242 miles per hour and potentially more than 300 miles per hour, and is able to make turns that generate 27 Gs (one G is the force of gravity, and humans lose consciousness at 9 Gs).”
David Allen Sibley, What It's Like to Be a Bird: From Flying to Nesting, Eating to Singing—What Birds Are Doing, and Why

“It can be difficult to accept the fact that a lot of birds have to be identified as “possible” or “probable.”
David Allen Sibley, Sibley's Birding Basics

“Many species undergo an additional partial molt each year, involving just some head and body feathers. This most often occurs in the late winter or early spring and is called the pre-alternate molt, resulting in the alternate plumage. Many species, but not all, have an alternate plumage. Because this is only a partial molt (not involving all feathers), the new feathers of the alternate plumage are worn alongside the older feathers of the basic plumage.”
David Allen Sibley, Sibley's Birding Basics

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