Common Grackle - Ross Feldner

The Common Grackle was first described in 1758 by Carl Linnaeus, a Swedish biologist and physician, who formalized the modern system of naming organisms.

It is a species native to the United States and belongs to the Icterid family which includes orioles and meadowlarks.

This bird is a talented and aggressive opportunist that will eat almost anything. As its formal name indicates, it is a fairly common bird across America and can be seen striding across lawns in search of insects as well as vising feeders for seeds. It has a very diverse diet that includes spiders, crayfish, frogs, minnows, small rodents and grasshoppers, as well as berries, seeds, grain and acorns.

Common Grackles will even steal food from other birds including worms from robins!

They nest in colonies of 10-30 pairs building nests that are well hidden in trees. Being bold opportunists, they will occasionally nest in tree holes, inside old buildings and even in parts of active Osprey and Great Blue Heron nests!

Common Grackle
Fun Facts

When they find bread crumbs they will marinate them in water first.

Farmers may consider them pests since they eat many crops, especially corn.

They will eat nearly anything, including garbage.

Common Grackles will follow plows to snatch invertebrates and mice and when near water they will pick leeches off the legs of turtles!

Their beak has a special adaptation that allows them to saw open acorns.

Common Grackles practice the behavior known as “anting” to get rid of parasites and have been observed using lemons and limes and even mothballs for the same purpose.

Although they are very vocal birds, their unmelodic song resembles a rusty, squeaky, gate opening and closing.

A group of grackles is called a plague.

Click here to watch thousands of grackles take over a parking lot!

Click here to listen to the rusty rate call.

 

Rachel Carson Council
8600 Irvington Avenue  | Bethesda, Maryland 20817-3604
(301) 214-2400 | office@rachelcarsoncouncil.org

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