Birds quiz !!!!!!!!!!

They have a 1 chambered heart

They have a 4 chambered heart

They have a 3 chambered heart

they don't have lungs :(

They have 2 paires of lungs

They have paired lungs

stomach and heart

caudal and cranial

An estimated 90 percent of all bird species are monogamous. Monogamy is defined as one male mating with one female and forming a "pair bond." ... In some monogamous species, the male defends a territory in which his mate collects the food required by the offspring, but does not himself feed the nestlings.Monogamous birds have only one partner during the reproductive period. Examples : swans, macaws, penguins….

They have more than one partner during life describes the behavior of mating with several partners during a single breeding season, generally when one male mates with several females. The reverse (a female mating with several males)

An estimated 90 percent of all bird species are monogamous. Monogamy is defined as one male mating with one female and forming a "pair bond." ... In some monogamous species, the male defends a territory in which his mate collects the food required by the offspring, but does not himself feed the nestlings.

polygamist describes the behavior of mating with several partners during a single breeding season, generally when one male mates with several females. The reverse (a female mating with several males)