Also shot yesterday at Galveston, Texas.
#1 & 2 look like a young White-crowned Sparrow to me.
#3 & 4 look like vireos, but not sure which.
Sparrow and Vireo
Resin Northumberland, United Kingdom(Zone 9a) Apr 06, 2013
#3-4 I'd go for White-eyed Vireo, a first-year bird that hasn't developed the white iris yet.