Yes. They have similar structures but not necscarily the same function
birds evolved from reptiles.
Birds are descended from dinosaurs, which were an offshoot of reptiles. The scales on bird feet are a remnant of that reptilian ancestry.
The most similar thing about birds and reptiles is that they both lay eggs. However, it is important to note that not all reptiles lay eggs. There are many species of snakes and lizards which do not lay eggs, but instead give birth to live young.
Birds are mainly just a modern, evolved therosaurus dinosaur. Most likely, the dinosaurs were not reptiles like lizards are.
Examples of Homologous Structure: Rodent teeth Hooves in species of camels, goats, sheep and cattle Hands and feet in primates Bird feathers Shark morphology
The basic textbook answer is: embryology, homologous and analogous structures, and fossils. However these are old ideas and don't stand on their own two feet, so to speak, when more research is done into them.
They are both birds, they have feathers, beaks, feet, wings, eyes, they can breath, mate, not mammals or reptiles, they can fly, they have brains, necks, mouths, bones,...
crocodiles have webbed feet crocodiles have webbed feet
It depends. For example, snakes do not have feet, whereas lizards have clawed feet.
Birds don't have fins as fins are for swimming in water. One could argue that they have scales on their feet as the skin there is tough and 'scaly' but there is not an overlapping matrix of scales like their would be in reptiles.
no flowing of blood in the feet of birds
Assuming the dogs have four feet and birds two, you need 15 dogs (60 feet) and 1 bird (2 feet) giving a total of 16 birds and dogs and 62 feet. None. Dogs have paws, not feet. Also, birds have claws, not feet.