Bird ID help

I was out at the John Heinz Refuge Friday and Saturday in Philadelphia PA and I have a few I need help IDing
Thanks in advance

#1 if i'm right is a female red winged black bird

I think #1 is a song sparrow, (but it's the amount of whitish on the breast that is making me feel it's not RWB?)
2 looks to be a Mockingbird?
3 common Merganser
4 Last one is Tufted titmouse

I'm thinking #2 looks more like a wren of some type, as for exact species I get mixed up with all the little "squeaky birds", especially when ranges overlap on two similar ones.

CyberDyneSystems wrote in post #15780272
I think #1 is a song sparrow, (but it's the amount of whitish on the breast that is making me feel it's not RWB?)
2 looks to be a Mockingbird?
3 common Merganser
4 Last one is Tufted titmouse

Thanks for the ID
I'm ok on 3 & 4 but stll not sure on 1&2

#1 is definitely a song sparrow
#2 is a wren of some sort, not sure which
#3 is a common merganser drake
#4 no idea

I'm with Harv, mostly.
1. Song Sparrow
2. Either a Bewick's or Carolina Wren, not sure which.
3. Common Merganser (male, or drake)
4. Jake got this one....Tufted Titmouse

Nothing left to add.
Well done all.

2 is a Carolina Wren

Thank you all for the ID's
As a new birder it's hard to track them all down.
Thanks for your help