Provides detailed scientific information, with images and sound, for each of the 716 species of birds nesting in the USA and Canada. Also contains image and video galleries showing behaviors, habitat, nests, eggs and nestlings as well as recordings of bird songs and calls selected from the extensive collection in Cornell's Macaulay Library of Natural Sounds.
A point of care tool from BMJ Evidence Centre designed to support clinicians in their decision making from diagnosis to treatment. Mobile access is available. Also see the Isabel (Differential Diagnosis Generator) entry below.