Determining the Gender of love birds.

The Gender of love birds(fisher) can be identified by tail the MALE birds have thinner tail,but the FEMALE birds has much thicker tail than the male ones, you can see in the given pictures.

Determining gender of cocktails

Male cocktails have no spots under wings or tail,there face turns yellow  as they grow and they have brighter  orange patch on there face(cheeks) as compared to female cocktails.

Female cocktails have spots under wings and tail, but there are no colour changes on there faces and have ligther orange patch on there cheeks as compared to male cocktails.

Determining the gender for budgies

Male has blue nose, while female budgie has white/dusk nose