Characteristics of Aves
What is significant regarding a birds bones?
They are hollow with pneumatic cavities
Stimulus is divided into 2 categories - Primary and Secondary- What do each stimulus include?
Primary- Changes in Photoperiod-light
Secondary- Food availability and weather
How old is this aves fossil?
147MYO
What do we mean when we say Order Struthioniformes had a keeless breastbone?
meaning it evolved more closely from the dinosaurs and never flew
Types of birds in Order Falconiformes
pg420-421
falcons, very fast birds
What did (does) flight allow birds to do?
Allowed escape and exploitation of a new habitat and food source.
Migration involves orienting, what does "orienting" encompass?
sight, sense of direction and times between landmarks, relative position of sun; young birds must learn routes from older birds
What was archaeopteryx an intermediate form of?
Reptile and Bird
what types of birds are in Order Anseriformes
Swans, geese and ducks
types of birds in Order Apodiformes
Swifts and hummingbirds
Type of temperature regulation in birds
Homeothermic/endothermic
Explain polygyny in birds
one male mates with more than one female
What were the varying characteristics of Archaeopteryx?
1. Characteristics of birds--feathers, flight, eggs
2. Characteristics of reptiles--teeth, wing claws, scales
What types of birds make up Order Sphenisciformes
penguins
Types of Order Passeriformes
Perching song birds
What side of the female birds body has the oviduct and ovary?
The left side
What types of birds are gallinaceous
Pheasant, grouse, chickens
Why do you think that these organisms started to grow feathers from scales?
Critical thinking
What types of birds are in Order Strigiformes
Owls
Types of birds in Order Accipitriformes
Vultures, condors, buzzards
How many parabronchi do birds have
9 (what are they)
What does monogamy in birds mean and what types of young do these types of birds have?
one male bonds and mates with one female; most perching birds such as robins, finches; usually altricial young (born helpless and must be fed by both parents)
Could Archaeopteryx fly
no
What type of birds are in Order Columbiformes
pigeons, doves
Types of birds in Order Piciformes
Woodpeckers, toucans