Birdsong, is it for courtship? Do birds make calls other than courtship?

Birdsong, some foraging, some talking, some quarrelling, not just for courtship. It is the way birds speak.

I guess so, in spring and summer, birds like these begin.

Reproductive behavior: behaviors related to animal reproduction, such as nesting, courtship, mating, egg incubation, nursing, and a series of behaviors

Predatory behavior: It is the behavior of animals to obtain the food they need to survive in various ways

Defensive behaviors: In order to protect oneself, all kinds of behaviors to defend against enemies are defensive behaviors, such as running away, playing dead, releasing odors, protective colors, warning colors, body defense, etc

Rhythmic behavior refers to the periodic and rhythmic behavior that organisms gradually form with the periodic changes of the earth, the sun, and the moon, which is rhythmic behavior, such as circadian rhythm, monthly rhythm, seasonal rhythm, etc. With the alternation of day and night, seasonal changes, and tidal fluctuations, regular circadian rhythmic behaviors, seasonal rhythmic behaviors, and tidal rhythmic behaviors

"Cicada song" is a kind of information exchange between male cicadas and female cicadas when they are courting, and it is a courtship behavior for the purpose of breeding offspring

So choose A

The cuckoo's call is just a way for the cuckoo to court.

If you guessed correctly, it is the small occultus windbird (scientific name: Ptiloris Victoriae, English name: Victoria

riflebird), belongs to the genus of passerinees, also known as the small skirt wind bird. It is mainly found in Australia and New Zealand. Male birds behave exaggeratedly when courting.

Yes, for example, there is communication in foraging, migration, and playing.

When in danger, birds also make calls, still very urgent.

The big-eyed pheasant (scientific name: Argusianus argus, English name: great argus) is a pheasant bird, also known as the green luan or hundred-eyed pheasant.

There are multiple blue spots on the lower ends of the wings, which resemble a pair of large bright eyes, hence the name of the big-eyed pheasant. It is found in Malaysia, Sumatra, Borneo and inhabits tropical rainforests. In some parts of Asia, it is considered to be the phoenix.

Qingluan will forage on the ground floor in the morning and evening. They do not have chicken-like oil glands, and hens only lay 2 eggs at a time.

Qingluan is not as colorful as other pheasants, but its courtship is very unique. The rooster clears the grounds in the forest for courtship. The rooster will crow loudly to attract the hen, and in front of the hen, he will spread his wings in a fan, showing the "eyes" on the wings, and the real eyes are hidden in them, watching the hen.

Therefore, Carolus Linnaeus gave them the scientific name of the hundred-eyed giant Argos in Greek mythology.

It should be said that there are both, but it may be based on behavioral information.