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The Cornell Lab of Ornithology
All About Birds

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  • Birds can show color variations for different reasons. This Red-breasted Nuthatch has a condition called leucism. Photo by Anne Elliott via Birdshare.

    What can cause birds to show weird color variations, such as being all or partly white, or unusually dark?

  • predator guard on Tree Swallow nest box by Ash

    How to Safeguard a Nest Box From Predators

  • A Black-and-white Warbler sits quietly and recovers after hitting a window. Photo by Laura Erickson via Birdshare.

    How can I keep birds from hitting my windows?

  • Galileo by Virginia Greene

    FAQ: Outdoor Cats and Their Effects on Birds

  • With the right care from a trained rescuer, injured, sick, and orphaned birds can be returned to the wild. Photo by WabbyTwaxx via Birdshare.

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    Getting Started with eBird Mobile

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