Birds

• damn u miss a
• birds are tetrapods
• birds have feathers
• birds rely on metabolism for energy, therefore they need to eat frequently
• birds

  • raptors
  • hummingbirds
  • shorebirds
  • wading birds
  • game birds
  • seabirds
  • flightless birds
  • waterfowl
  • perching birds
• raptors

  • largest birds
  • can carry twice their weight
  • carnivores
  • hooked beaks and talons
• shorebirds

  • mostly near water
  • rarely swim
• seabirds

  • mostly on the ocean
  • nest on land
  • fly over ocean
• wading birds

  • long legs
  • sharp beaks
• flightless birds

  • they cant fly
  • lacks a keel
• hummingbirds

  • small
  • scrappy personality
  • buzzing sound
  • hovering flight
  • high metabolism
• game birds are birds that are hunted for food and sport, such as pheasants and partridge
• waterfowls

  • designed for water
  • webbed feet
  • oily feathers
  • low density bones
  • some can fly
• perching birds

  • most beloved for their songs
  • bright colors
  • feet automatically lock when perching
• keel

  large flat structure on a bird's breastbone where wings attach
• many bones of the bird are fused to give its skeleton rigidity, which weighs less than its feathers
• contour feathers are visible featers of a bird
• down feathers are found in the tail and wings of birds and are used for insulation
• legs of a bird only have scales
• high lift wings


  large and convex, lots of lift
• high speed wings


  long and thin, little drag in the air
• soaring wings


  long and thin like a glider
• elliptical wings


  short and wide for quick take off and landings. low speed ,max manueverability
• birds have 9 air sacs
• courtship of birds/avians

  • males: visual and vocal displays to impress a female, have bright colors to defend the nest
  • females: dull colors to camouflage while incubating eggs
• avian reproduction

  • birds have only one set of ovary
  • ovum and sperm meet in the oviduct
  • embryo is tiny with many yolk
  • ass embryo passes through the female's reproductive tract, they get a layer of albumen (egg whites)
  • egg passes thru the body and out the cloaca