Do most male and female birds look the same if they are species?

In most bird species, males and females look different from each other. This is known as sexual dimorphism. Sexual dimorphism can manifest in various ways, including differences in size, coloration, and plumage patterns.

However, there are some bird species in which males and females look similar. These are known as monomorphic species. In these species, it can be difficult or even impossible to visually distinguish between males and females.

Overall, while sexual dimorphism is common in birds, there are also monomorphic species in which males and females have a similar appearance.