Gray Catbirds aren't flashy and except for the spot of cinnamon colored feathers under their tails they are mostly an overall gray with a black cap. While their appearance isn't dazzling the variety of songs they sing certainly can be.
Spending time photographing Yellow Warblers can try the patience of even the most patient photographer because they are so flighty, small and move quickly but it can also be rewarding when you get photos that you like.
The sack of crap was open, it doesn't matter to me if they left it open or if a critter opened it but that sack of crap was what was attracting the Northern Rough-winged Swallows and photos of these birds with dog waste shouldn't exist, yet now they do.
Luck was on my side when I found the family of Mountain Bluebirds in good light plus they were close enough to take quality photos of them, first the male then the female and the juveniles.