Yes, it must be! Whereabouts do you live by the way? Do you go looking for snakes in the wild? I live in the UK and from around now till about March all the snakes are hibernating - grass snakes, adders and smooth snakes (we only have three species). We'll have to wait till spring now to look for adders properly again and photograph them. At least you can still watch birds in the winter, because here there are no reptiles to be seen all winter. It was nice last January to spend two weeks in Florida - plenty of reptiles to see including alligators!