Bird Identification: CLOSED: Purple or House Finch, 2 by smm2013

smm2013 wrote:
Hi.
I need help identifying 2 different birds.

1st picture (small bird with striped head)
We have nicknamed this little bird "thief". He is one of our steady customer. I'm trying to figure out what kind of bird it is. Is it a warbler? Can you help me identify it? He is really tiny (smaller than sparrow).

2nd picture (bird that has a full black cap and is black throated with a longer tail)

Are these 2 male and female of the same species/family?
I'm in Chicago

Thanks!