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What's your latest life bird? What bird lists do you care about? eBird tallies them for you and archives your photos and sounds—all for free. GadwallMareca strepera. Abundance map. eBird Status and Trends. Advancing Science and Conservation.
Birds are a group of warm-blooded vertebrates constituting the class Aves ( / ˈeɪviːz / ), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
About Birds. Birds are vertebrate animals adapted for flight. Many can also run, jump, swim, and dive. Some, like penguins, have lost the ability to fly but retained their wings. Birds are...
All News. All Webinars. Birds of the World is a powerful resource that brings deep, scholarly content from four celebrated works of ornithology into a single platform where biologists and birders can find comprehensive life history information on birds. Every bird has a story.
Birds are warm-blooded vertebrates (vertebrates have backbones) and are the only animals with feathers. Although all birds have wings, a few species can't fly.
Despite their importance, birds are declining at a shocking rate. One in eight birds species is now threatened with extinction. But by learning about birds, we can begin to tackle the environmental crisis. Birds are found all over the world and are one of the most well-studied groups of animals.
El Bajapalos Pecho Blanco se distingue por ser el bajapalos más grande de Norteamérica, y el único que tiene la cara completamente blanca alrededor de los ojos. Aunque el Trepador Americano se mueve por entre los troncos de árboles, como los bajapalos, es de color mucho más café que gris, y tiene la cola mucho más larga.
