Three morning doves and a starling?
Nope. Starling is wrong. Mourning Dove is one of the species but you got the amount of them wrong. Here's a hint for the other species; look at the color of its head.
And here's another hint, the one with it's head in the grass is the same species as the other one, its a female.
The answer is two Mourning Doves and two Brown-headed Cowbirds, one of which is female.