Your quite right in that A has a Pine Siskin feel to it with respect to that streaked breast
but in this case it is NOT a Pine Siskin. It's considered part of the warbler family. The breast
streaking is fine. I've added an eye shot if it will help.
B is in the woodpecker family but it is not a YB Sapsucker. Look carefully at the base
of the beak. What hint of colour do you see?
C is certainly a duck ... a female duck but not a Long Tailed duck.
Thank you for your guesses.