This document discusses key facts about birds, including that there are around 9,000 species. It covers their classification in the animal kingdom, as well as the three main orders of birds: parrots and related species, woodpeckers and toucans, and perching birds which make up 60% of species. The text also outlines characteristic bird features, such as feathers, wings, a four chambered heart and hollow bones, as well as how their skeletons are adapted for flight.

1. Intro to Birds
By Mr. “Birds are loud” Chapman
etiquette ok

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13. Birds
 There are about 9,000 species of birds.
 Classification:
 Kingdom- Animalia
 Phylum- Chordata
 Class- Aves
 Order- 3 main orders of birds.

14. Birds
 Order: Psittaciformes
 Ex. Parrots, cockatoos, macaws, lories, parakeets

15. Orders of Birds
 Order: Piciformes
 Woodpeckers, toucans

16. Orders of Birds
 Order: Passeriformes
 Perching birds
 this order contains about 60% of all bird species

17. Bird Characteristics
 2 legs
 All lay eggs
 Warm-blooded
 Feathers
 Wings
 4 chamber heart
 Wing bones are hollow
 Enlarge sternum

18. Similar to Reptiles
 1.Scales on legs/feet
 2. Egg layers
 3. Bird like fossils

19. Types of Feathers
 Feathers:
 1. Contour feathers – give shape (aerodynamic)
 2. Flight feathers – allow birds to fly
 3. Down feathers – provide warmth
 4. Powder-down feathers – make them
waterproof (because of powder).

21. Terms
 Molting is?
 When the bird sheds old feathers, usually
about once a year.

22. Key to Flying
 Skeleton:
 1. Sternum – is enlarge to allow lots of flight
muscle to attach.
 2. Vertebrae/ribs – are fused together, makes
them stronger.
 3. Wing Bones – are hollow to make light and
allows more oxygen to fly at high altitudes.
 4. Skull – is aerodynamic