Biology

Photographs and soundclip of Audouiens gull.

Description of the breeding ranges of two subspecies of this bird.

Factsheet on this vulnerable species, its description, range, ecology, threats and conservation.

World range, habits, diet, molting, and nesting of this species.

Photos, identification tips, sound file, and taxonomy chart.

Informal society dedicated to the preservation of the memory of the extinct Ectopistes migratorius. Membership sign-up, an extinct bird mailing list, and links.

Facts, photos, and videos of this species, also known as Ruppell's Vulture.

Photos, history, physical traits, nesting, and feeding habits of Haliaeetus leucocephalus. Includes poems and stories.

The Internet Bird Collection provides several short videos.

Describes the physical appearance of the male and female of this species. Includes facts about its range and habitat.

Describes the subspecies of this bird and their range. Includes images.

Photo, range map, and facts about this bird's habitat and physical traits.

Provides facts about this bird's physical traits, breeding habitat, and diet. Includes photos of the Atlantic Coast adult and a sound recording.

Photo, range maps, and facts about this bird's diet and habitat. Includes a sound file.

Photo plus description of range.

Photographs and description of this North American species, the sounds it makes, its conservation status and further information.

Description of this bird, a photograph, range maps and a sound file.

Identification tips, sound files, photos, life history, taxonomy chart.

Species account describes this bird's migration status, nesting, and diet. Includes range maps.

Identification tips, sound recordings, range maps, facts, and photos of this species.

Includes a photo, range maps, and facts about this bird's habitat and behavior.

Detailed photos of this bird's plumage and facts on its nesting behavior and conservation status.

Provides facts about this bird's physical traits and habits. Includes photographs, range map and sound file.

Identification tips, a taxonomy chart, and data on this songbird's habitat and nesting.

Photo of this bird's nest with eggs. Includes sound files and a brief narrative.

Biology of New Zealand introduced bird, the common myna.

Offers detailed photos of this bird and its plumage. Includes facts about its habitat and nesting.

Details on this bird's taxonomy, physical traits, and breeding habitat. Includes sound files.

Photograph of adult, sound file, description, range and status.

Identification tips, range maps, life history, and taxonomy chart for this bird.

USGS species account.

USGS species account.

Audubon Field Guide species account.

Photograph of this bird taken in Japan.

Describes the range, physical traits, and habitat of this bird. Includes photos.

Photo of the spring adult of this species.

Images of this bird plus brief description of habitat and range.

Photo, range maps, and facts about this bird's habitat and diet.

Photographs of this species by Greg Lasley.

New Zealand endemic bird, the morepork.

Photo, identification tips, habitat, diet, nesting, and behavior of this bird.

Factsheet with photographs, physical characteristics, habitat, behavior, diet, predators and threats.

Video, photographs and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation.

Dr Graziella Lossa at the Mammal Research Unit at Bristol University has investigated the reproductive behavior of an urban red fox population.

Research project by Alex Olson on this species including its classification, habitat, reproduction, adaptations to its cold environment, nutrition and interactions with other species.

Taxonomy, photograph and description of the feral cat, its habitat and distribution, life history, physical tolerances, community ecology and invasion information.

Research project by Rachel Aschenbrenner.

Photographs, video and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation.

Many videos and photographs with details of classification, status, description, range, habitat, biology, threats and conservation.

A panda knowledge site specially designed for children and those seeking information about endangered species. Lots of pictures.