the number of Robins that I have in my yard. I had 10 in the front yard and 14 in the back yard, all at the same time. And that's not counting the ones that re over in the brush at the sides of the yard. I put fresh water in the bird bowl this morning and there were 4 of them lined up waiting their turn!
Our robins don't tolerate others on their patch. If a male spots another then feathers fly. The only time you see quite a few at once here is during the months of winter when food is scarce.