Contrast between colors is something every living being on the planet uses to discern different items from each other. In its simplest form, contrast is the difference between shades and colors. This is the basic premise behind foliar flags. The general hypothesis behind foliar flags is the early color contrast between berries and foliage is timely in such a way to attract birds and other animals to feed.
As the days are getting shorter, the mornings cooler and fall sets in, it will soon give way to snowfall in the Midwest. The cold and wintry days in Michigan’s Upper Peninsula mean one thing for us; winter finches, Grouse and most importantly, OWLS! The past few years have been pretty superb for Snowy Owls especially. This isn’t necessarily a good thing long term, however it has brought quite a bit of enjoyment to Midwest birders.