PPT-Feathers – if it has feathers, it’s a bird

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 1011 inches. Adaptations Feathers Oil and Feathers Grade Level 58 Subject Areas science 5736857781577405760257759577255771858199 W57740576305773757602577405760257759 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.. 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.. 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.. Taking . a fresh look at dinosaurs and birds. Marcus R. Ross, Ph.D.. Professor of Geology. Director, Center for Creation Studies. Liberty University. At issue:. Views of . dinos. have changed over time. 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. 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. . . &. 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.