Cornell Lab of Ornithology
Cornell Lab of Ornithology: How to Id Birds
This thorough site describes how you can identify birds by examining their silhouette, field marks, posture, size, flight pattern, and habitat.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: E Bird
A huge database is accumulating that can be used by educators and scientists to examine the status of bird populations in locations of their choosing. It is becoming a goldmine of information about bird biodiversity around the globe. All...
Cornell Lab of Ornithology
Cornell Lab of Ornithology: All About Birds
One of the great attractions of this site is the ability to listen to the birds. Each bird is categorized with a picture, description, its cry, conservation status and "Cool Facts." There are tips for attracting birds as well as...
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Sandhill Crane
An abundance of facts, pictures, and sounds of the Sandhill Crane are depicted on this complete site. Topics highlighted include: cool facts, description, range, habitat, food, reproduction, and conservation status.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Snowy Owl
Read the abbreviated description of the Snowy Owl and delve into a more detailed description of this bird if this information is insufficient. While reading about this interesting bird you can listen to the sounds of this species.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Nest Watch: Nest Monitoring Manual [Pdf]
NestWatch is a citizen science project where the average person can assist scientists in observing and cataloguing bird populations to track how successful they are at nesting and reproducing. This 36-page package provides information...
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Ornithology: Avian Development
A good page devoted to the development process of birds. Discusses the incubating process and the stages of development.
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Ornithology: The Evolution of Birds
Site provides a good overview of avian evolution debate without taking a firm stance on the dino-ancestry issue. Gives the broad ideas concerning bird origin and evolution.
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Ornithology: Bird Flight
Excellent coverage of the adaptations and actions of birds in regard to flight. Contains specific information, diagrams, and pictures.
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Ornithology.com: Foraging and Nutrition
A very good discussion of the nutrition and feeding habits of birds.
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Ornithology: Metabolism and Thermoregulation
A good site that discusses the rate at which a bird's metabolism functions and its effect on the body temperature of the animal.
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Ornithology: Avian Reproduction
Provides a good discussion of the reproductive behaviors and systems of birds. Contains information on everything from nests to incubation times.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Bird Feather Color
Yes, birds can see color and this site delves into pigmentation, color abnormalities, and structural colors of birds' feathers.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Feather Structure
This site provides a detailed explanation of the structure of bird feathers. Topics include feather topography, types of feathers, and feathers and flight.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Molting
Why do birds molt? How many times a year do they molt? When do birds molt? These questions and more are answered on this comprehensive site.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: A Calliope Hummingbird Molts Its Gorget Feathers
Striking photos are presented in this colorful site that show the molting stages of the Calliope Hummingbird.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Bird Feather Plumage Variations
Plumage variations can be based on a number of factors. This brief but informative examines single plumage patterns, seasonal variations, and sexual dimorphism.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Wall of Birds
See the biodiversity and evolutionary of birds in this mural, titled "From So Simple a Beginning,". Mural features the world of birds and shows bird families including extinct ancestors.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Dusky Grouse
The dusky grouse is a subspecies of what was previously called the blue grouse. Cool facts, description, range, reproduction, and other names are the topics discussed on this succinct site. Listen to the sounds of this bird species as well.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Great Horned Owl
Cool facts, range, habitat, behavior, and more can be found on this competent site. In addition, you can listen to the sounds produced by the Great Horned Owl.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Barred Owl
The hoot of the Barred Owl resembles "who cooks for you". You can actually hear this sound and find information on its habitat, food, behavior, and more on this thorough site.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Barn Owl
In addition to hearing the sounds of the Barn Owl, you will find information on the habitat, food, behavior, reproduction and more on this comprehensive site.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Flammulated Owl
This all encompassing site allows you to listen to the songs of this species and delve into topics such as cool facts, range, habitat, food behavior and more.
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Western Screech
This comprehensive site discusses topics such as cool facts, range, habitat, food, behavior and more. You can also listen to the sounds made by this species.