Absolutely Lesser Goldfinch. By the way, I don't know how much time you spent looking at warbler pics, but you would have saved yourself that effort by noting the bill shape: warblers have much thinner bills. Bill shape and size is often a good clue to point you in the right direction; bright colour patterns you'll likely remember without trying, but the bill really needs to be looked at (unless we're talking about a toucan or spoonbill etc). Just a friendly hint. -O-

Whitelacey.......this is so funny! I looked out my kitchen window, and on the ground under my suet feeder was a bird that looked just like what you described. Very black head and back with white stripes on the wings, and very white chest and abdomen. Of course, just as I turned to get my camera, it flew off. I should have stayed and observed more instead! As it flew off, it had pretty obvious white wing stripes. My first inclination was a juvenile male towhee.....since we have lots of towhees around. I saw no brown. I'll keep my eye out and my camera close-by........but I immediately thought of you and wondered if, now, I will be driven crazy too. hahaha What caught my eye as it was flying up to a tree was the white on it's wings, which made me think of a red-headed woodpecker. I looked up juvenile redheaded woodpecker and some of the pics looked like it, except mostly in the pics, their heads were grayish. Oh well.....hopefully I'll see it again!

Its a duck, a green wing teal I believe. Birds have a number of predators, small and medium mammals, other birds, reptiles. Could be a hawk or owl, or a cat or fox or raccoon. Squirrels even will raid nests I believe.

third clip... thats it ... https://www.allaboutbirds.org/guide/Gray_Catbird/sounds# good job babs.. who needs birders.. when i got a babs .. lol ... and there sure are enough cats around.. so go figure on that .. lol .. i have an old 3 gal dog water bowl on the deck ... for the feral cats.. and birds in the heat of summer ... so i get all kinds of interesting fauna out the kitchen window ... you should hear the old cat on the inside of the sliding door.. bitchin at the birds.. i dont even know how to explain that noise.. lol .. ken