The first bird is actually a Yellow-rumped Warbler and the second bird is a female Red-winged Blackbird. The second bird is a little tricky because it almost looks like it has yellow on the face but it's just a very buffy face. The back gives it away to not be a Yellow-headed blackbird with all the rufous edging to the feathers.
More info on both species found here:
https://www.allaboutbirds.org/guide/Yel ... Warbler/id
https://www.allaboutbirds.org/guide/Red ... ackbird/id
If you don't already have a field guide I recommend this great one:
https://www.amazon.ca/Stokes-Field-Guid ... 0316010502