This is a good photo showing coloration of House Sparrow (HOSP) coloration and flight pattern. The bird on the hand is a male - notice gray cap and black bib. The three birds in flight are all females.
You can download high resolution version at Morgefile.com. Photos at morguefile are royalty free, so this is a good one to use in educational presentations on bluebirds and their enemies.
You cannot begin to preserve any species of animal unless you preserve the habitat in which it dwells. Disturb or destroy that habitat and you will exterminate the species as surely as if you had shot it. So conservation means that you have to preserve forest and grassland, river and lake, even the sea itself. This is vital not only for the preservation of animal life generally, but for the future existence of man himself—a point that seems to escape many people.
-Gerald Durrell, The Nature Conservancy
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