Characteristics
Birds have this type of heart
Birds lay this type of egg? (hard or soft)
What is hard?
The typical number of days for a chick to develop and hatch
What is 21?
The part of the feather that is the "feathery" part
What is vane?
This feature of bird bones helps them fly.
What is porous?
This type of bird doesn't fly, but runs really fast.
What is an ostrich?
Within 24 hours these begin to develop
What are mouth and brain?
The part of the feather that is the "stem"
What is shaft?
Bird have this type of temperature regulation
What is endothermic?
This bird does not fly, but uses its wings as flippers
What is a penguin?
Within 48 hours, this organ is beating
What is the heart?
This action in birds keeps their feathers oiled and smooth.
What is preening?
Bird use this to eat and the shape varies depending on their diet.
What is toothless bill?
Hawks and eagles are examples of this type of bird
What are raptors?
Within 72 hours, these begin to develop
What are lungs and ears?
Birds do this regularily to their feathers to replace dead ones
What is molt?
Birds have this type of embryonic development
What is oviparous?
Hummingbirds are an example of this type of bird
What is nectar feeder?
Around day 10-12, these are visible.
What are comb and wattles?
This type of feather has hooks and barbules, allowing them to interlock
What is contour?