If their mouth is dry inside, they are dehydrated. If it is a little wet, they are fine. If your baby bird is dehydrated, make sure you dampen its food a bit more so it can more liquids.
If it is a small bird or a baby bird, I would give it droppers of water. Then when you put it down, give it an easily accessible water source, such as a plate or bowl filled with water.
It depends on the species.
You can take the baby bird to a wildlife sanctuary.
because its yellow
when there is no water in them
Your baby is sick and probably dehydrated. Give water.
the baby bird is called nestling
It can be. But the best way to tell is by how yellow their urine is. The darker it is, the more dehydrated the person is.
well if that baby bird is your pet and it can nearly fly,....... no. Trust me i have a baby bird for a pet.
they become migits and when they turn to bird their feather get bigger
No, a baby bird cant, but if it is crushed it can.
The baby bird eats it. It's important fo baby birds to get nutrients, and the yolk contains the things a baby bird needs to grow proplerly.