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It depends upon the species.
Finches are very quick-growing; they begin to get feathers within about a two weeks, and will fledge shortly thereafter.
Ravens, martins, and the larger parrots are very slow-growing; they are unfeathered for most of a month, and take between two and four months to fledge.
Most altricial birds fall somewhere in between those two extremes.
What else can I help you with?
Which came first fish or amphibians or birds or mammals?
Dinosaurs emerged first. Some dinosaurs were birds, but they didn't come until later.
When did the duck first appear on earth?
The first birds are thought to have appeared in the late Jurassic period, between 150 and 200 million years ago. Modern duck species have traits that are closer to some theropods (dinosaurs) than are most land-based birds.
What does it mean when a bird appears from no where?
Birds, or anything else cannot appear from nowhere. If you see one, or many, it means your eyesight is working.
When did transformational grammars first appear?
1957
What was the first animal the pilgrims saw in the Americas?
The first animals the Pilgrims would have seen in the Americas were birds. Seeing birds let the people on the ship know that they were getting near land.
What period did the first birds appear?
In the beginning of the world they were flightiness.
What year did birds appear on earth?
they were first noticed millions of years ago during the dinosaur time
What causes birds to appear as if they are flying in place?
Birds can appear to be flying in place due to strong winds or air currents that allow them to hover without moving forward.
When did first birds appear?
The first birds appeared during the Jurassic period, around 150 million years ago. They are believed to have evolved from small theropod dinosaurs.
Is there going to be The Birds remake?
A remake was considered in 2007 but nothing was ever finalized, so no, it does not appear there will ever be a remake of The Birds.
What is significant about the birds first flight?
what is the significant of birds first flight
How do you get past level 1-20 in Angry Birds?
You launch the birds, and kill the pigs.REMEBER!- If you tap the yellow birds they go faster and cause more distruction.Also If you tap the blue birds three of them appear.
When did the first birds appear?
the first bird to come to earth was about 160 million years ago. this is by faith bradford *by G1N4* to be more precise it was the Mezozoic era and the Jurassic period.
How do you get silver trench to appear in red rescue team?
recruit the legendary birds
Are Birds resistant to anthrax?
There are reports of the disease developing in ostriches, crows, canaries, and ducks but in general birds appear to be at low risk for anthrax.
What year did the key first appear?
What year did the key first appear?
Are birds and mammals decended from a common ancestor?
Mammals came before birds. The first mammals lived in the Triassic and the first birds lived in the Jurassic.
