Among the many colorful tanager species, a Green-headed Tanager is a real standout. Learn more about this species and any others that interest you by using Birds of the World (photo by Nic Allen). Learn how the Belted Kingfisher fits into the kingfisher family, which is composed of the 117 species of kingfishers found worldwide (photo by Paul Konrad).

Explore definitive life histories of all the world’s birds with the most in-depth ornithology resource ever created. This is your chance to try using Birds of the World Free of charge for 30 days, accessing photographs, videos, sound recordings, range maps, and science-based life history descriptions of each of the 11,017 bird species recognized worldwide. From cardinals and chickadees to flamingos and toucans, you can learn about any species of birds that comes to mind as well as see how they fit into their families – bird families are also described with each genus and species illustrated within the 249 family groups.

Birds of the World is a true library of expansive bird information, all in one place, and we’re convinced that you will want to continue to use this valuable resource month after month, year after year, because you will see the great value in being able to access information about any birds – anytime. After the Free 30-day Trial period, you can continue to use Birds of the World resources for the next year for just $49 annually, which amounts to less than $5 per month!

If you are only interested in using Birds of the World during the next few weeks, you can cancel any time before the 30-day trial period expires. (Because of the way a regular subscription is processed, you will be asked to provide a credit card to activate your Free 30-day Trial.)

To sign up for your Free Trial of Birds of the World, see Special Offer - Birds of the World

Even before you sign up for the Free 30-day Trial, you can always access a few species’ life history files at the Birds of the World website – just scroll down to find out which species accounts are currently being featured at Birds of the World - Cornell Lab of Ornithology

Note: About once per year, the Birds of the World website is inactive for 1 or 2 days for technicians to conduct upgrades to the system, and that activity will take place March 19 and 20, which hopefully won’t be too inconvenient.