Not sure why, but our back yard seems to be a very exciting place for these birds. This is the second time that we have seen a gigantuan flock of these little guys hanging around our backyard. They don't seem to be eating our grass seed, so I think it might be all the weeds back there that is grabbing there attention.
Joe ran out back and screamed at the birds and they hi-tailed it to the safety of our roof. It was actually quite funny! So many birds, but I have no idea what they are. They look pretty boring actually. Just brown and dull. However, when there are 50 of them in your backyard one tends to take notice.