1. Family Life

2. Reproduction Courtship- male bird’s attempt to attract a mate
Appearance
Song
Dance
Bird Courtship Dance
Birds of Paradise mating dance
Prairie Chicken mating dance

3. Reproduction Oviparous Internal fertilization Amniotic eggs
Mostly yolk, which is coated in a protein containing substance, the egg white, called albumen
Thick spiral fibers of the albumen called chalazae keep the yolk suspended in the center
Encased in hard shell by special glands in the oviduct

4. Nests Flamingo- large volcano shaped mud mound
Grebe- floating raftlike nest
Woodpeckers- cavities in the tree
Weaverbirds- intricate ball shaped nest, hangs from thin branches
Hornbills- hollow tree, covers hole with clay and debris
Emperor penguin- male holds egg on feet and covers it with a fold of skin to incubate
Cowbird- lays its eggs in the nest of other birds, host parent takes care of cowbird
Emperor Penguins

5. Chicks
Altricial- usually hatch in less than two weeks and emerge from eggs naked, blind, & helpless. Parents care for until grow feathers. Robins, sparrow
Precocial- have longer incubation periods, some as long as a month. When hatched, young are well developed and able to move and feed themselves. Ducks, quail, water birds

6. Migration
Nearly half of all bird species in the Northern Hemisphere travel south in winter and north in summer
Enables birds to live year-round in warm climates where food remains abundant enough to supply their enormous needs
Provides the best possible environment for raising young
Inborn instinct