Evening birding & House Wren question

MH1920@aol.com
Wed, 28 Apr 1999 20:56:16 EDT


Hello all,
	Walked around behind my house this evening to see if i could find any 
new migrants.  Here is the migrant list:
Myrtle Warbler - 4
House Wren - 1 see below
Gray Catbird - 4
Brown Thrasher - 2
Yellow Warbler - 1
Common Yellowthroat - 1
Solitary Sandpiper - 1
Green Heron - 1
Rough-winged Swallow - 2

This is the second House Wren I have seen this year.  The first  was close to 
a month ago at Harford Glen 4/5.  I am beginning to believe the Harford Glen 
bird may have wintered there considering I never saw it after that during my 
many visits.  Well the question is this:  The two House Wrens I saw differed 
in the distinctiveness of their eyebrow.  The one I saw today had an almost 
nonexistant eyebrow, while the one I saw earlier had a very prominent 
eyebrow.  Slightly more prominent then the bird in the NGS guide.  The bird 
today looked more like the one in the American Bird Conservancy's All the 
Birds with almost no eyebrow.  Is this a difference is subspecies or does it 
just vary? 

Matt Hafner 
Bel Air, MD