Ralphie, I can hardly believe you are contemplating life without Bert! And I don't know what we would all do without the latest gossip about him...... I think housecats let outside do a heck of a lot of damage with wild birds. Feral cats undoubtedly do get some birds, but more rats and mice .....My housecats are housecats and not allowed out except under supervision, because of the cost to birds. This morning around 5 when I went into the coop, the hens did their little morning clucks and purrs....so I knew it was warmer! When it is frightfully cold, they don't budge in the dark, just keep hunkered down. Love this warm day. and sun!!!!