Your Mourning Doves must start nesting early in the year! The first and last one in the video looked like it (or they) fledged just three or four weeks ago! I'm guessing you're in peninsular Florida or south Texas. And that's a nice winter-plumage Chipping Sparrow at the very end!
@Summer Tanager We're having spring very early down here in NE Florida. Thanks for the sparrow ID! They pretty much all look the same to me so it's pretty hard to identify them. I wish we had Nicobar or Victoria Crowned Pigeons down here too as FL right now has the right temps for them.