Bird Photos for ID - Mass, USA in July (1 Viewer)

Hi all,
New to this forum and bird watching/photography. These 4 photos were taken in the past 2 days in Massachusetts. I have some guesses as to what these birds are, but I would like some confirmation - trying to learn by looking through pictures online and my 2 field guides.

This one I think may be a field sparrow:



Not too sure about this one:



This one seems heavily streaked like a female red-winged blackbird, but has some yellow in it, not too sure what to make about this:



And finally, I think this one is a juvenile black-crowned night heron:



Thanks for your help all!

Hi Molokai75, and welcome to the forum.

#1 Swamp Sparrow
#2 Red-winged Blackbird
#3 Juvenile Red-winged Blackbird
#4 Juvenile Black-crowned Night-Heron

-Josh

Agree with The Falcon on all