they both lay eggs and some birds migrate to warmer more pristine areas just like salmon do
Well, a few similarities are that both of them go through a stage where they depend on their mother for staying alive, they both have a certain mating process, and they both start as embryos inside a...
birds and mammals both give birth to live young
Birds are on eggs and a dog is born a pup then when older a bird flys and dogs run many diference
in human life you breath oxygen and a plant breaths oxygen
egg, baby, adult bird, and death