I want to know the answer to the following question:
What do birds use for evaluation of potential mates and mate attraction?
All the background I'm provided with is that "Calls are used for a variety of purposes, including mate attraction, evaluation of potential mates, bond formation, the claiming and maintenance of territories, the identification of other individuals (such as when parents look for chicks in colonies or when mates reunite at the start of breeding season), and the warning of other birds of potential predators, sometimes with specific information about the nature of the threat.". Is that enough to answer the question?
Answer: yes