American Crow
This bird is smart! It can figure out how to solve problems like opening a clam shell by dropping it onto a rock from above. This bird can been seen most everywhere.
Size: 17 – 21 inches
Food: Insects, other small invertebrates, small vertebrates, bird eggs, nestlings, seeds (especially corn), nuts
Nest: cup nest in tree
In Marin: year round
Sounds: "caaaw"