Thank you all!
This was not intentionally inspired by Alice in Wonderland, but I am a big fan of Alice and her adventures, so maybe it crept through!
There are a lot of wild rabbits in our neighborhood, but they are mostly small, brown and more timid so I think these may be someone's pets. One of them returned and spent the weekend supervising my gardening efforts.
My neighbor has quite the buffet of vegetables. It both surprised and delighted me to see that they were in my yard, mostly eating weeds!