PPT-Bird Feathers

The shaft is not down the center  When the bird takes to the air its wing feathers spread to create an aerodynamic surface When the bird lands feathers are flexible enough in their arrangement to enable the wing to fold neatly against the birds body without bending or damaging the flight feathers. Bird flight. Feathers. Gas . exchange with bird lungs. Check Cornell Laboratory of Ornithology website for good information. The . aerofoils. of birds: the wing is an aerofoil in its shape in transverse section and generates lift (in conjunction with a power and recovery stroke). BIRDS. Taxonomy and Characteristics. Kingdom . – . Animalia. Phylum – . Chordata. Class – Aves. Order ~ . 45. Family ~ . 235 . Genus ~ . 2,340. Species ~ 10,000. 489 in Washington state . Great blue heron. Matthew F. Tabor. https://en.wikipedia.org/wiki/Archaeopteryx. http://oficina.cienciaviva.pt/~pw011/jazidas/interrelacoes_theropoda.html. Bird . Phylogeny. Origin of Feathers. Prum. – Development and Evolutionary Origin of Feathers, 1999. The shaft is not down the center. .  When the bird takes to the air, its wing feathers spread to create an aerodynamic surface. When the bird lands, feathers are flexible enough in their arrangement to enable the wing to fold neatly against the bird's body without bending or damaging the flight feathers.. Feathers are really just modified scales. Birds are also known for their beaks (they lack teeth but have a beak), most fly, have hollow bones.. Birds. American Robin . Turdus. . migratorius. -10-11 inches. 18A. Common Characteristics. Covered with feathers. Have thin-walled, often hollow bones (these bones are not lighter, but they are denser, stiffer, and stronger). Require enormous amounts of energy. Birds. Cursorial. or running feet. . e.g., Bustards, Cassowary, Ostrich.. . Perching feet. . e.g., sparrows, crows, bulbuls.. . Scratching feet. . e.g., fowls, quails, . pheasants, Hen.. . Raptorial feet. . Birds are reptile like animals that maintain a constant. internal body temperature. . They have an outer covering of feathers, 2 legs that . are covered with scales and front limbs modified. into wings.. Feathers – insulation and flight. 1. . Modified scales that help regulate body temperature.. 2. . Structure . and variety varies from bird to bird.. Structure Types. . Contour – Covers the body, wings and tail. Thin, slender, pointed beaks are found mainly in insect eaters. They are used to pick insects off leaves, twigs, and bark. This warbler is a good example.. Woodpeckers have strong beaks which taper to the tip, forming a chisel for pecking holes in trees for food or nests. Most feed on insects which live under the bark.. Feathers – insulation and flight. 1. . Modified scales that help regulate body temperature.. 2. . Structure . and variety varies from bird to bird.. Structure Types. . Contour – Covers the body, wings and tail. 2 legged. Egg laying . Warm blooded. Vertebrates. Feathers. Wings. Classification – 3 orders. Kingdom – Animalia. Phylum – Chordata. Class – Avies. Order. 1. Psittaciformes – parrots, cockatoos, macaws, lories, parakeets. . . &. Nick Zorn. Class Aves. A. round . 10,000 living . species. Largest number of species out of all . Tetrapods. Adaptations of birds:. Hollow Bones. Beaks. Feathers. Wings . Order . Sphenisciformes. penguin. hummingbird. wing. swan. egg. nest. beak. feather. wing. beak. feet. tail. legs. head. Birds live in. Birds eat. Birds move by. Birds find mates by. forests. wetlands. desert. cities. fruit.