Senses of sight, smell, and hearing are remarkably acute in birds.
Birds, except nocturnal species, have no external ear, but hear well.
The young of nest building birds when born are blind, naked, and unable to walk.
In the Hen, the Partridge, and the Ducks, the young are able to walk, swim, or pick up food, as soon as they break the shell.
With most birds of prey the female is the larger.
There are between seven and eight thousand species of living birds.
Examples: the Andean condor, the Northern bald eagle, and the Turkey vulture
Examples: Caribbean flamingo,Saddle-billed stork, and the Hammerkop
Example: Mandarin duck

Humboldt penguin
Mariana fruit dove
West African crowned crane
And Many More