Actually they don't.
Bird songs are territoriality calls to other males, saying "keep out private property".
Males sing more often, but females can and do sing.
Yes there are male and female frogs. And there are male/female hermaphrodite frogs.
It is known that female birds prefer males which sing better
yes i beleve so
because that is the tradition of birds
yes they have to sing!
Either one of them can whistle or sing, if they enjoy doing so.
No. Very few female birds of any species sing, although they do call. Song is almost always a territorial advertisement and it is the males that set-up breeding territories. Male nightingales reach the breeding areas before the hens, in spring. They sing to attract a female when they arrive a week or two later. When the hen has nested and hatched chicks, the males stop singing.
Birds generally sing or call in order to attract a mate. It is the male that does the singing to impress the female. Another reason birds sing is to announce territory or to scare off intruders. For example, if you get too close to an eagle's nest when there are eggs being protected, the mother may dive bomb you and screech at you.
Females can find a male to mate with through social interactions, displays of availability or receptivity, and seeking out mates in their environment. In many species, pheromones and physical signals play a role in attracting potential mates. Additionally, female choice and selection based on desired traits are commonly seen in the animal kingdom.
the male cicadas are the ones that sing.they do it to attract mates.when a male is singing,not only females but other males gather around.Once the males and females have gathered,they find partners that suit them,then they mate
''Hinnies'' (sing. Hinny) are the offspring of a male horse and a female donkey :)