Is sexes are separate in birds?

Yes, in birds, sexes are typically separate, meaning that individual birds are either male or female. This sexual dimorphism can be observed in various physical characteristics, such as size, plumage color, and behavior, often with males displaying more vibrant colors to attract mates. However, there are some species where males and females look very similar, making it difficult to distinguish between the sexes. Overall, the separation of sexes plays a crucial role in their reproductive strategies and behaviors.