420 likes | 480 Views
Class: Aves. Marine Birds. Characteristics. Depend on the ocean for survival Lightweight bones Return to land to breed. Endothermic = create their own body heat 3 Types of feathers: 1- Down = small, fluffy, closest to skin, for warmth.
E N D
Class: Aves Marine Birds
Characteristics • Depend on the ocean for survival • Lightweight bones • Return to land to breed. • Endothermic = create their own body heat • 3 Types of feathers: • 1- Down = small, fluffy, closest to skin, for warmth. • 2- Contour = larger, cover wings and body, for flight. • 3- Powder = Repel water, protect the down
http://www.birds.cornell.edu/ • Online Bird Guide
Bird Orders • Class Aves broken into 29 orders • All orders end in –iformes • Ex. Pelecaniformes- Pelicans (totipalmate swimmers) • Ex. Passeriformes- Songbirds
Diving Pelagic Birds • Open-ocean birds, spend most of their lives at sea • Puffins, petrels, shearwaters, albatross • Migrate thousands of km each year
Large nostrils located in short tubes on sides/top of bill • Spend most of life at sea • Come to land only to breed • Wandering Albatross-Largest wingspan of all living birds (nearly 12 feet)
Wandering Albatross chick
Penguins • Can dive down 800 meters for food • Flightless, marine, pelagic, swimming and diving birds • The Emperor Penguin is the largest @ 4ft, 75lb
Penguins • The most aquatic of all marine birds • 15 species (all are in the Southern Hemisphere) • No contour feather (can’t fly) • Thick layer of fat and dense down feathers • Excellent swimmers/divers • Eyes adapted for underwater vision • Both males and females take care of watching the egg and chicks
Babies Adelie Penguins Emperor Penguins
Rockhopper Penguin King Penguins
Totipalmate Swimmers • All 4 toes are webbed • Pelicans, Gannets, Cormorants& Frigatebirds • Some breathe through their mouth (nasal openings are closed)
Blue-footed Booby
Long-legged Waders • Herons, Egrets, Ibises, Spoonbills, Storks & Vultures • Herons & Egrets have S shaped neck in flight
Herons & Egrets have S shaped neck in flight
Bird populations decreased because of plume hunters (1902-1903) • Fashionable for women to wear feathers in their hats • 4 birds=1 ounce ($32/oz)
1,608 packages of plumes in a commercial sales room in 1902 • Each package weighed 30 oz totaling 48,240 oz • Required the lives of 192,960 herons
Flamingos • Pink plumage due to carotenoids obtained from food, cyanobacteria • Most unusual feature is the bent bill held upside down to feed
At one time occurred naturally in the state of Florida • Nest made on a cone shaped pedestal of mud • Young swim day of hatching
Marsh birds • Crane, Coots & Moorhens • Losing more species of birds than any major order of birds • The Whooping Crane is the tallest American bird
Whooping Crane & chick
Sandhill Crane -More commonly seen
Shorebirds • Much diversity • Divers, skimmers, waders • Lakes, coastal waters, beaches, meadows
Shorebirds • Sandpiper – narrow, pointed bill • Snowy egret – long, flexible neck • Roseate Spoonbill • Sea ducks • Sea Gull - scavengers
Diurnal Birds of Prey • Hawks, Eagles, Kites & Ospreys • Have short, decurved hooked beaks • Excellent eyesight • Feed on birds, mammals, fish or reptiles
Kingfishers • Large heads with spearlike bills • Dive straight into water for fish
Perching Birds • All the Songbirds • Ex. Cardinals, Jays, Wrens, Warblers, etc. • Includes Loggerhead Shrike & Florida Scrub Jay
What is preening? • Definition: Preening is the process by which birds groom and care for their feathers. When a bird is preening, she uses her beak to pick through her feathers -- removing any debris, arranging feathers that are out of place, and distributing a special oil that is secreted from a gland at the base of the tail. This oil helps a bird's feathers stay healthy and shiny.