Collisions & Origins
True or False. The highest floors (13 and above) have the highest percentage of bird collisions.
False. It is floors 4-11, followed by floors 1-3.
What type of protein are feathers made out of?
Beta-keratin.
The fused clavicles of birds or "wishbone" are referred to together as the _______.
Furcula.
What is the more scientific name to describe "hollow" bones of birds connected to the respiratory system?
Pneumatic.
What group of birds is called a "murder"?
Crows.
What is the ideal space between stickers on windows to prevent bird collisions by allowing birds to see windows?
2" x 2"
What type of feathers are mainly pennaceous and also symmetrical?
Tail Feathers.
What bone structure do the pectoralis and supercoracoidius flight muscles attach to?
Keel/sternum.
What is the primary structure that contributes to vocalizations in birds?
Syrinx
Starlings.
What does the 42 stand for in the "8 x 42" in our binocular specs for this course?
Objective lens size.
What feature do plumulaceous feather lack compared to pennaceous?
Hooklets.
If velocity below an airfoil decreases, the pressure below the airfoil ________, which creates lift in flight.
(Increases, decreases, or stays the same?)
Increases.
Where does air first travel to in the one-way air flow in avian respiratory systems? (Anterior air sacs, lungs, or posterior air sacs?)
Posterior air sacs.
What group of birds is called a "flamboyance"?
Flamingos.
How many million years old is the oldest bird fossil?
150
What is the main supporting structure of a feather (separating the anterior and posterior vanes)?
Rachis.
Name one fused bone of the leg in birds (something that is two bones in humans, but one in birds).
Tibiotarsus or tarsometatarsus.
Which of the four chambers of heart pumps oxygenated blood to the rest of the body?
Left ventricle.
What group of birds is called a "unkindness"?
Ravens.
Which well known fossil (135-155 million years old) is one of the species that "links" dinosaurs and birds evolutionarily?
Archaeopteryx
What is structure/organ at the base of a bird's tail that secretes oil for preening.
Uropygial gland.
What bone supports bird tongues and wraps around the heads of some species to prevent concussions when drilling into tree bark?
Hyoid process.
What is the structure at the roof of the mouth of birds that leads to the nasal passages?
Choana
What group of birds is called a "ostentation"?
Peacocks.