Read the full article by clicking the link at the bottom.
I can understand this upsets some people. If your bird feeder is being frequented by a hawk every day and ruining the bird-feeding experience for both you and the little birds, the best thing to do is to take the feeder down for a week or so. When the hawk realizes the "watering hole" has dried up, it will move on to another area. As soon as you put the feeders back up, the smaller birds will return to the yard right away.
This is a fabulous article about the memories of birds. Click the link at the bottom to read the full article-it's well worth it.
If someone calls you a “bird brain,” they don’t mean to compliment you. It turns out, however, that birds you see every day can accomplish astonishing feats of memory.
What’s truly amazing isn’t the sheer number of seeds chickadees can store, but that they remember most of them! Black-capped Chickadees have been observed storing close to 1,000 seeds in one day. That means thousands of seeds each winter. They've been tested to remember these locations for at least a month if not longer.
Ontario SwiftWatch is a volunteer-based program where community groups and professional biologists work together to locate and describe nesting and roosting Chimney Swift habitat within Ontario's urban areas. These grass-roots groups find and track Chimney Swift nest and roost locations within their communities, count numbers of birds, and act as urban stewards for active habitat sites. Bird Studies Canada (BSC) helps facilitate this process by providing training, support, monitoring resources, and data management and analysis.
