It depends on which species of bird you are referring to. There are hundred of types of birds that are kept as pets.
In different areas, bird species are eaten by different kinds of introduced species. Small flightless birds like the kiwi are especially vulnerable because they have no adaptations to escape predation. Some introduced species that kill birds include domestic dogs, snakes, and domestic cats. Rats sometimes eat the bird eggs, too.
Lots of bird species fit that description, but there is no species with that name.
The species of bird that other species are dependent on is called a keystone species. Keystone species have a disproportionately large impact on their ecosystem relative to their abundance. This particular bird species plays a crucial role in maintaining the balance and health of the ecosystem.
Keystone species
Keystone
Because they are different animals
The species of an eagle is the bird.
In an ecosystem when a large number of species are dependent on one particular species of bird this makes the bird a keystone species. This bird has a disproportionate effect on the surround environment because so many others are dependent on it.
Bugies would be the least expensive of talking birds. But they are not the best for talking. Cockatiels would be the second least expensive. They are better for talking but would sing tunes rather tan speak words. Macaws would be the best at talking but are very expensive.
Yes, it is an endangered bird. There are five frigate bird species. Only one, the Christmas frigate bird is endangered.
There are 2,900 bird species in South East Asia.