They are nature's garbage men! I live near a park with mature trees that is sandwiched at the intersection of two busy roads. The turkey vultures settle in on a garage roof across from the park a block from the intersection and just have a buffet! They are magnificent.

That's a male so-called "English house sparrow"(Passer domesticus), an invasive species that is neither English nor a true sparrow, but an African weaver finch. These prolific birds are very messy and destroy nests of many cavity-nesting native bird species in order to build their own bulky nests in their places.

Looks like a domestic pigeon that probably escaped from its owner or didn't find it's way home. Head structure doesn't look like a Homing pigeon.

No problem Brian, and thank you! Thanks Catherine! Sometimes they would get into our shop bays and try to build their nests in the roof supports. Even if we diligently remembered to kee the doors closed and they couldn't get inside for days, the moment we forgot they would be back.