No. Petrels are not mammals - they are seabirds. The differences between birds and mammals are:
they have feathers.
feathers
it has fins
it has feathers because it is a bird
Whitebait is a type of fish so it would have fins.
Cormorants are birds (duck-like seabirds) and therefore have feathers. Even penguins, which use their wings underwater in a similar manner to fins, still have feathers.
does white bait have fur feathers or fins
No they don't have fins, feathers or fur.
It has has fins
hey hi, yes the coromant has feathers and fur but does not have fins. cheers
feathers
feathers
it has fins
animals have fur to keep them warm its the same with feathers and they have fins so they can swim faster
it has feathers because it is a bird
Anchovies are not birds, so they don't have feathers. Anchovies are not mammals, so they don't have fur. Ahchovies are fish, so they do have fins.
feathers because it is a sea bird
The tern is a bird: thus, it has feathers.