What is the difference between a male and female parakeet?

Answer 1

This cannot be answered simply, because there is actually no specific breed of bird called a "parakeet".

The term "parakeet" is a generalised term to cover numerous species of smaller, long-tailed parrots, specifically budgies, lorikeets or cockatiels.

If you are really talking about budgies, which is the bird most commonly referred to in the States as a "parakeet", then a mature male tends to have a deep blue cere, which is the waxy bit above the beak where the bird's nostrils are. Males only develop this blue as they mature towards repreoductive age. Females have a white cere but, when they are in breeding season, it deepens in colour to brown.

Answer 2

you can tell the difference by looking above the beak, which is the nose if the color is pinkish brownish it is a girl. If the color is blue it is a boy!