Keep it warm and feed it small insects. It shouldn't need too much water if it's feeding OK, but if not a drop of water occasionally can't hurt.
If you have found a week-old barn swallow, it is best to contact a local wildlife rehabilitation center or avian veterinarian for guidance. They will be able to provide specific care instructions tailored to the bird's needs and help ensure it receives the appropriate care to survive and thrive. Avoid feeding or handling the bird without expert advice to prevent unintentional harm.
Normal when they are sick. they swallow a lot of mucous. Just take to pediatrician if does not improve.
I think the baby is just cells during this time...
Both parents care for the juvenile after its 4-6 week incubation period is over.
like a BUG
generally, this is what a baby looks like in its 40th week. it is ready to come out!
no
A healthy four week old baby should be noticeably larger than a newborn with less wrinkles than a new born and a clearer complection.
Yes, sadly, because they need their mothers milk.
The weight is about 1 gram and it's 14-20 mm long so about the size of a bean. See link below.
It's not called a baby until week 38 of pregnancy or when it's born (even if it's before week 38).
Around week 18