Dichotomous Key/Aves
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< Dichotomous Key(Redirected from Dichotomous Key:Aves)
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[edit] 1
- Keel
- Present - #2
- Not present - Dichotomous Key:Struthioniformes or Dichotomous Key:Tinamiformes
| Chordata keys |
| Subphyla |
| Myxini | Urochordata |
| Classes |
| Actinistia | Actinopterygii | Amphibia | Aves | Chondrichthyes | Dipnoi | Mammalia | Petromyzontida | Reptilia |
[edit] 2
- Lamellae
- Present - Dichotomous Key:Anseriformes
- Not present - #3
[edit] 3
- Wings modified to flippers
- Yes - Dichotomous Key:Sphenisciformes
- No - #4
[edit] 4
[edit] 5
- Feet placed far back on body
| Glossary for this page (all links are to Wikipedia articles) |
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[edit] 6
- Nostrils enclosed in tubes
- Yes - Dichotomous Key:Procellariiformes
- No - #7
[edit] 7
- All four toes webbed
- Yes - Dichotomous Key:Pelecaniformes
- No - #8
[edit] 8
- Number of pairs of sternotracheal muscles in the syrinx
- One - Dichotomous Key:Ciconiiformes
- More - #9
[edit] 9
[edit] 10
- Method of attacking prey(this needs to change, it isn't correct, or useful)
- Feet - Dichotomous Key:Accipitriformes
- Beak - Dichotomous Key:Falconiformes
[edit] 11
- Leg hair
- None - #12
- Extending at least to toes - Dichotomous Key:Pterocliformes
[edit] 12
- Syrinx control
- Excellent - Dichotomous Key:Passeriformes
- Other - #13
[edit] 13
- Eyes fixed in eye sockets
- Yes - Dichotomous Key:Strigiformes
- No - #14
[edit] 14
- Flapping speed
- Fast enough to hover and fly backward - Dichotomous Key:Trochiliformes
- Slower - #15
[edit] 15
- Reversible outer toes
- Yes - Dichotomous Key:Coliformes
- No - #16
[edit] 16
- Creates holes in tree for nests
- Yes - Dichotomous Key:Trogoniformes
- No - #17
[edit] 17
- Toe direction
- Zygodactyl - Dichotomous Key:Psittaciformes
- Syndactyl - Dichotomous Key:Coraciiformes
[edit] Not yet references
Could be Galliformes, Turniciformes, Gruiformes, Charadriiformes, Columbiformes, Cuculiformes, Caprimulgiformes, Apodiformes

