...has been an interesting discussion! Maryland has only slightly over one acre
of land per resident. If you add on other development and road infrastructure
that comes with development, it soon becomes apparent that if we all had large
yards there would be no forest, wetland or grassland left. No room for most
wildlife, but I suppose a few species would do well, cardinals and robins etc. 
 
I made a conscious decision to buy a house on a small (0.15 acre) lot. Surely
sprawling development is a much bigger threat to bird life than birds striking
windows? In that regard, there is a lot to be said for high density living. 
 
just another 2 cents.
 
Andy Wilson,
Frederick