The level of response is going to depend a lot on the type of call and time of year. Playing a song to a bird that's on territory during the breeding season wil

The level of response is going to depend a lot on the type of call and time of year. Playing a song to a bird that's on territory during the breeding season will often elicit a very aggressive response. Of course, this assumes you're playing a call from the same species. A Song Sparrow likely isn't likely going to care about a White-Crowned Sparrow song, for instance. One trick birders use to elicit a response from birds is "pishing," [0] which imitates a lot of species scolding calls and gets other birds to come check out the perceived threat. https://www.youtube.com/watch?v=uRvdhovTgRo https://www.youtube.com/watch?v=uRvdhovTgRo