Science Buddies
Science Buddies: What Seeds Do Birds Prefer to Eat?
In this project you'll build a bird feeding platform with four separate feeding areas. You'll be able to observe birds at close range, find out what birds inhabit your area, and learn about their seed-eating preferences. So get out your...
Canadian Wildlife Federation
Hinterland Who's Who: Bird Feeding
Get the facts about feeding birds. Learn about different types of bird feeders and what to put into them. Next, find out what types of birds come to feeders and some of their characteristics. Finally, familiarize yourself with some of...
Sea World Parks & Entertainment
Sea World: Bony Fish Diet and Eating Habits
This site provides a general rundown of the diet and eating habits of bony fish. Content includes a focus on food preferences and resources, food intake, methods of collecting and eating food, and fish as biological control agents.
Regents of the University of Michigan
Animal Diversity Web: Introduction to Teeth
The Animal Diversity Web offers a very good description of teeth in the digestive process of mammals. Covers the variety of teeth and links to discussions on a variety of teeth issues.
University of California
Ucmp: Eutheria
UC Berkeley offers a very general description of the generalized diet of mammals. This means it describes the fact that there is an enormous variety of diets.
Other
The frog.org: Feeding
TheFrog.org provides information about the lives of frogs. This particular page discusses the diet of a typical frog.
Other
Digestion in Green Iguanas and Other Herbivorous Lizards
Melissa Kaplan's Herp Care Collection provides the article, "A Very Brief Overview of Digestion in Green Iguanas and Other Herbivorous Lizard Species."
Other
Ornithology.com: Foraging and Nutrition
A very good discussion of the nutrition and feeding habits of birds.
Other
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.
Cornell Lab of Ornithology
Habitat Network: Winter Berries for Winter Birds
Find out about the change in diet for many bird species as the seasons change.
Earth Life
Earth Life: Mammals: Diet and Digestion
This site discusses the diet and digestion in all sorts of mammals, including herbivores, omnivores, and carnivores. Read about different kinds of animals and their different dietary preferences.
PBS
Pbs the Life of Birds: Bills, Beaks and Food
This lesson plan explores how natural selection has influenced the development of features that contribute to successful feeding (bills, wings, talons, etc.), as well as identifying those characteristics that enable birds to obtain the...
Other
Catch the Science Bug: Favorite Bird Foods [Pdf]
Discover what the birds in your backyard like to eat then record your findings on the data collection sheet.
National Wildlife Federation
National Wildlife Federation: Bird Feeding 101
Next to gardening, feeding wild birds is the second most popular hobby in North America. This concise resource describes how to provide a safe and healthy feeding environment for the birds visiting your backyard.
Other
Digital Frog International: Frog Mouth
A very impressive photograph of the inside of a frog's mouth. No text.