Out back of my home there is a long and narrow lagoon that has palm trees on either side. The environment is inhabited by a diverse species of fowl and other avian sorts. For now, it is interesting studying their behaviors. Interesting too is the large number of pigeons that "rule the roost" in the habitat. The sight of seeing them perching and nesting on palm trees was unexpected. For now this sight, in addition to the greater proportion of doves to clinkers that one sees in such as NYC, remains of interest, In the back of my mind though, I'm searching for terrace control strategies. Functional ideas anyone?