Signs of Spring in January?!

This morning there was a flock of robins bathing and drinking from the water dishes and the pond. There must have been at least a dozen. Even a chipmunk or two (couldn't tell if it was the same one or not) was out and about. It makes me nervous though when animals start using the pond before I've taken the net off, because I'm afraid they'll get stuck in the net like the time the frogs were all stuck and lost some toes. It seems like I have to take the net off earlier and earlier each year. It's been in the upper 60's the past couple days when January is usually our coldest month.