baby birds get adult mites from their parents in the nest
Innate.
Baby birds do not smell, probably not if you had to handle it. Birds fight to survive, many are tossed out of the nest by siblings or adult males.
After foraging for food the adults return to the nest and regurgitate the collected food for the young to eat it from their mouths. Not appetizing for a human but it beats starvation.
Magpies and woodpeckers.
baby birds do :)
a clutch
You can remove your love birds nest when the baby birds have moved away from the nest and have learned to fly. Make sure you use gloves to avoid touching bacteria that may have accumulated on the nest.
Baby birds mostly fledge or leave the nest in mid/late Summer.
They're called birds.
Nestle
The cow bird. The cow bird lays it's eggs in another birds nest, and then when the cow bird's eggs begin to hatch, the baby cow birds will push the other birds out of the nest.