1. What is a bird?
Homeothermic (“warm-blooded”) – allows them to live in a wide variety of environments
Waterproof feathers help conserve heat
Light, hollow bones aid in flight
Oviparous – lay eggs with hard shells that are resistant to water loss

2. What is a “sea” bird? Spend a significant part of their life at sea
Feed on marine organisms (fish, invertebrates)
glands in their skull which excrete a fluid with a high concentration of salt
Most breed in large colonies
Most mate as lifelong pairs
Make up 3% of all bird species

3. Procellariformes
ex. Shearwaters, Albatross, Petrels. Excellent flyers, pelagic seabirds that seek food by flying over the ocean, only come to land to breed, well developed sense of smell, elaborate courtship
ALL OCEANS
104 sp.

4. Sphenciiformes sp.
Penguins- marine diving birds of Southern Oceans. Flightless, short heavy legs far back on body, wings modified for "flying" underwater, feed on fish, squid, krill

5. Pelecaniformes
Pelicans, cormorants and allies. Feed on fish & squid. Only birds with totipalmate feet, or webbing between all 4 toes. Some have pouch on throat
world wide - 62 spp

6. Anseriformes- Waterfowl- ducks, swans, geese
webbed feet, hind toe eliminated, flattened bill
Located world wide -150 sp.

7. Gaviiformes
Loons. Heavy bodied, long pointed bill, legs near back of body. 5 spp.

8. Charadriiformes (shorebirds and relatives)

9. Ciconiformes
Herons, storks, egrets and allies. Long legged wading birds, most of which feed by probing in the mud or picking items off the surface in both coastal and freshwater environments.
located world wide.
114 sp

10. More shorebirds