The only bird you've listed that uses a cavity to nest in is the House Sparrow. House Sparrows do not need a cavity to nest in, but they will use one. All the other birds you have listed will not use a nest box. I would never let a House Sparrow nest in one of my boxes, but maybe it doesn't matter so much in the city?

GREAT PHOTOS, Feather. I especially like the Raven over water but all were wonderful. Got to see many birds that I'll never see in my area...thanks!

Congrats on your Mocker, and it's a nice pic!! Oh...those crazy Mockers. I just love mine. They can really dominate a yard, but they are so much fun to watch. I had 2 pairs that built their nests fairly close to one another in my yard this spring. It has been a riot to watch them try to coexist peacefully. They aren't always so successful, and squabbles break out often. Now, I am watching the juveniles "get their attitudes on." I think that one of my males has decided to try to break a Guiness World Record for the longest constant vocalizations. That boy sings all day long and all night long, flying from perch to perch to stake his claim to territory. So funny! Here is a recent shot of one of the parents with a fledgling in my yard, and another shot of 2 of the fledglings together.~~Angie

Hi ggopal, I saw this same bird yesterday and again today. The Android app "Merlin Bird ID", a free app at the Google Store, identified it as a Northern Mockingbird. Today, I am in Newton, MA 02465. Using the Merlin app, I set it to Mockingbird calls and this bird flew back and forth several times getting within three feet of me. It was apparently trying to locate the "other Mockingbird". After putting my cellphone on a bush and standing about 10 feet away, the Mockingbird came within a foot of the cellphone, again trying to locate the other bird.