The first of these benefits, is that the many colors that are produced by the leaves of bushes and trees just before they fall, serve to reduce and even negate the natural camouflage of many bird species. Green, gray, yellow or brown, or shades and patterns thereof, blend in very well with the various green shades of summer leaves but not quite so much with red, gold, orange,or maroon. The chances of spotting an unknown bird species, or a species that is expert at avoiding detection is thereby increased.
The second benefit is that you can hear many birds even when they don't sing. Birds that prefer to forage on the forest floor, for example, now can't help but make rustling sounds as they move along the forest floor through dry fallen leaves. Other birds, as they hop from branch to branch, cause dry leaves to rub again each other and dry branches to crackle. This is how I spotted the Ovenbird in the photo above. A first encounter for me.
|Yellow rumped warbler|
|Dark eyed Junco|
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