Agree with Randy.
Some finer details:
http://www.migrationresearch.org/mbo/id/lisp.html
http://www.migrationresearch.org/mbo/id/sosp.html
JanJ
Looks like song sparrow and black-throated sparrow to me.
No, not female - if anything, a juvenile. But I have no field experience with juvenile Black-throated Sparrows, so I "cannot confirm or deny".So the bottom one is a female black-throated?
I can't rule out Belding's Savannah sparrow for the opening post. But I've only seen Savannas here in MO and NE.