I took this photo yesterday in Cambridge, MD. It was mixed in with shots of Ruby Crowned Kinglets. Is this a Pine Warbler? It doesn't look right for a Myrtle but I didn't expect to see Pines so late in Maryland. Thanks in advance for your help.
Not a pure State-colored. Either Cassiar Junco (J.h.cismontanus) or Oregon group. This is a really tough ID, especially because we don't know what Cassiar Junco is. Theories are either an obscure subspecies, or intergrades between SC and Oregon.