The Bird Nuts

I'd call it an Eastern Wood-Pewee based on the long primaries, peaked head shape, darker vest, and lack of eyerings.

Looks like a Blue-winged Warbler x Golden-winged Warbler hybrid to me. It has two yellow wingbars (indicating some Golden-winged ancestry) and it appears to have a dark eyeline.

Agreed.

With the streaked, dark vest, bright white line down the center of the breast, and the short tail, this looks good for an Olive-sided Flycatcher.

Young Swamp for me.

That's a good guess. Boy, do they look strange! http://magazine.outdoornebraska.gov/wp-content/uploads/2014/10/cardinal-by-zechmann.jpg

Song Sparrow for 1 and Bobolink for 3 is correct. Not completely sure on 2. Both of the sparrows look like youngsters to me and the Bobolink might be a molting male.

With the short beak and the black spots on the white outer tail feathers, this is a Downy Woodpecker.

Eastern Bluebirds.

Seconded.

I agree, it's a flycatcher. I'm leaning Willow/Alder due to bill size.

That sounds like Belted Kingfisher behavior. I realize they are not all black, but in certain lighting and at a distance I suppose they could look that way. https://www.google.com/search?q=belted+kingfisher+flight&client=firefox-b-1&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjetoONvvDcAhXLVt8KHXkoCFkQ_AUICigB&biw=1600&bih=770

Double post. https://forums.whatbird.com/index.php?/topic/920-purple-martin-texas-78070/

Was it in the trees, on the shore, or just flying above you? Did it make any sounds?

Agree with Bewick's Wren. A House Wren wouldn't have that defined of a supercilium, as mentioned above, and it would have more barring on the wings and a shorter tail. I believe this is a young bird.

This is a hummingbird. Maybe Rufous?

That is a Green Heron.

A female/immature Vermilion Flycatcher would have a lighter, browner head, faint streaking on an even lighter breast, and usually a more vibrant color underneath (not as buffy). Vermilion Flycatchers also have different proportions (larger eyes, smaller bills).

As far as I know, they don't occur in Uganda.

It's difficult for me to explain shorebird differences, but I'll try. Yellowlegs have more densely-spotted wings and back (especially around the neck and shoulder areas) and a less prominent eyering than Solitary Sandpipers. Yellowlegs also have longer, yellower legs, longer necks, and very slightly thinner bills. Their heads also tend to look more gray to me than the brownish Solitaries.

Agreed. Magnolias have a distinctive tail pattern (the tip looks like it was dipped in paint) and the flank streaking does not connect to the face pattern.

Yes. The black and white checkered pattern on the wings plus the barred orange breast and belly is distinctive. EDIT: Posted at the same time as Bird Brain!

Looks like a Say's Phoebe.

Agree, Red-tailed. Don't know why it would be rare... ?

Looks like a Black-headed Gonolek, but I can't explain the dark eye. Perhaps it is young-ish?