The author of the popular Sibley Guide to Birds and other books explains bird behaviors and field marks, birding techniques, and more.
A Blue Jay turning its head. Notice how the shape of the black frame around the face changes in different head positions. Art by David Sibley
When we spot an apparent rare bird, it’s critical to consider other possibilities. Read More “Keep an open mind when identifying rare birds”
A close look at two common woodpeckers reveals subtle, yet variable, differences. Read More “Recognizing subtle patterns on woodpeckers”
Even a bird expert and field-guide author can learn more about birds by actively observing and asking questions. Read More “David Sibley takes a close look at American Avocets”
Why it’s worth learning about the variety of colors and patterns that appear on a bird’s folded wing. Read More “Appreciating wingbars”
Why the appearance of first-year birds in the same species can differ significantly. Read More “David Sibley explains variability in songbirds”
David Sibley provides tips for sorting out House Sparrows from New World Sparrow species. Read More “Distinguishing House Sparrow will help you identify other sparrows”
To understand birds better, take a closer look at feathers. Read More “How the sizes of birds’ various feathers influence color patterns”
David Sibley warns of the tricks light can play on birders when it comes to identification. Read More “Why lighting conditions can throw birders a curveball”
How feathers react after a drenching can affect our perceptions of birds’ appearances. Read More “Identifying birds when their feathers are wet”
