My mom taught me this technique called "pshing" for birds. Or at least, that is what I am 85% sure the technique is called, and also 100% sure I taught Greg that is what it is called. Basically, if you hear a bird and want to maybe entice it closer to you, you just stand there and say "psh psh psh" and the bird, being the curious little fellow he is, just flies over closer to see what that noise is. I don't think I've ever noticeably made a bird fly closer with the "psh psh psh", but I definitely got a cute reaction out of this little guy!
The last frame is his reaction to the pshing :)