BirdNote

Beaks suited for opening tough, hard seeds — thick, conical beaks — evolved in more than one lineage of birds. Rose-breasted Grosbeaks are related to cardinals, which also have powerful beaks. Evening Grosbeaks belong to the finch family, which includes goldfinches and crossbills — an entire family

We make it a habit to detail the broad and beautiful spectrum of bird colors, but iridescent feathers are undoubtedly among the most mesmerizing. When sunlight hits the Bufflehead’s dark head feathers at the right angle, their colors transform into shades of the rainbow, from deep violet to green

Ross’s Geese and Snow Geese are both white-bodied waterfowl with black wingtips that can be difficult to tell apart. The pair are a great example of what science calls sister species, which occur when a portion of one species takes an evolutionary step away from the rest, resulting in a species

Found in the Sierra Madre, the Arizona Woodpecker has a special connection to the mountain range. Sharing mid-elevation pine and oaks with fellow border straddlers, these small brown birds with white and brown cheeks stand out from other Woodpeckers with their heavily marked white underparts

Swainson’s Hawks make an incredible journey every year, migrating 12,000 miles round-trip from North America’s prairies to Argentina’s pampas. What makes them truly unique is their diet. Most hawks hunt rodents and reptiles, but Swainson’s Hawks switch to insects, feasting on grasshoppers and

La forma en que algunas aves sacuden, agitan o despliegan la cola puede ser muy característica. Una cola que se sacude o se despliega con rapidez puede sugerirle a un depredador que el ave está especialmente alerta o que no será fácil de atrapar, y al mismo tiempo, puede advertir al resto de la

Some bird songs leave us in admiration of their beauty, some with a sense of wonder at their complexity—and others are downright comical. As a maker of silly sounds, the male Willow Ptarmigan beats the Three Stooges hands down. But these sounds are no laughing matter. Where it nests in the shrubby

Over 12,000 miles across at its widest point, you might think the Pacific Ocean is a barrier that even high-flying birds can’t cross. Think again – some species make the trip every year as part of their life cycle. During the spring, Bar-tailed Godwits break up their trip from New Zealand to Alaska

Why do birds consistently follow certain routes in their migrations? Pathways of migration evolved, shaped by the wind. During the height of the last ice age, ice-free breeding habitat for songbirds remained in what is now Alaska and parts of Western Canada. Studies of fossil pollen show that

While full-speed-ahead birding can mean spotting a large number of species, there's quiet joy in stand-still birding. Pick a place-forest, field, or marsh. Find a seat that's dry, and hold your binoculars to your eyes. Be still and blend in. After perhaps 20 minutes, birds accept you as part of the