Dichotomous Key/Aves

Dichotomous Key: Aves Kingdom: Animalia Phylum: Animalia Subphylum: Chordata Class: Aves Information related to Aves Wikipedia Wikispecies Wikicommons

Parent key: Chordata Subphyla Vertebrata Key: Aves Vertebrata Aves

1

• Keel
  • Present - #2
  • Not present - Struthioniformes or Tinamiformes

2

• Lamellae
  • Present - Anseriformes
  • Not present - #3

3

• Wings modified to flippers
  • Yes - Sphenisciformes
  • No - #4

4

• Dives from surface for fish
  • Yes - #5
  • No - #6

5

• Feet placed far back on body
  • Yes - Podicipediformes
  • No - Gaviiformes

Glossary for this page (all links are to Wikipedia articles)
Keel: Lamellae: Wing: Flipper: Feather: Syrinx: Zygodactyl: Syndactyl:

6

• Nostrils enclosed in tubes
  • Yes - Procellariiformes
  • No - #7

7

• All four toes webbed
  • Yes - Pelecaniformes
  • No - #8

8

• Number of pairs of sternotracheal muscles in the syrinx
  • One - Ciconiiformes
  • More - #9

9

• Diurnal bird of prey
  • Yes - #10
  • No - #11

10

• Method of attacking prey(this needs to change, it isn't correct, or useful)
  • Feet - Accipitriformes
  • Beak - Falconiformes

11

• Leg hair
  • None - #12
  • Extending at least to toes - Pterocliformes

12

• Syrinx control
  • Excellent - Passeriformes
  • Other - #13

13

• Eyes fixed in eye sockets
  • Yes - Strigiformes
  • No - #14

14

• Flapping speed
  • Fast enough to hover and fly backward - Trochiliformes
  • Slower - #15

15

• Reversible outer toes
  • Yes - Coliformes
  • No - #16

16

• Creates holes in tree for nests
  • Yes - Trogoniformes
  • No - #17

17

• Toe direction
  • Zygodactyl - Psittaciformes
  • Syndactyl - Coraciiformes

Not yet references

Could be Galliformes, Turniciformes, Gruiformes, Charadriiformes, Columbiformes, Cuculiformes, Caprimulgiformes, Apodiformes