It's that time of year again, folks. The snow has finally melted, the sun is shining, and the migratory birds are back in town. I can finally enjoy the rare pleasure of birdwatching and lounging in my backyard, while ignoring the surrounding evidence of my neighbor's epic parties. Even with the cans and bottles that dapple our patio tables, my slice of urban paradise is primo ground for enjoying the birds that have been flitting around the neighborhood. Just sitting on my steps for a few minute…