I think that I have mentioned the two (sometimes three) Canada Geese that have wintered in the pond outside my bedroom window for the past two winters. Last year they left sometime in May and didn't return until late Fall.

This year, they left sometime in May but two of them returned about a week ago. The next day, there were three of them. The third day, six showed up.

I presume they did not go North for the summer and nested here in the South. Once the goslings were able to fly, they brought them home where they get free corn and nobody shoots at them.