Yes, American crows are protected under the Migratory Bird Treaty Act of 1918. The estimated population of crows is 31,000,000. Crows are scavengers.

Robins are protected by the Migratory Birds Treaty Act of 1918, so it is illegal to shoot robins in the nations which have agreed to the treaty. Those nations are the United States, Canada, Mexico, Japan, and Russia. Since South Dakota is part of the United States, the treaty applies to South Dakota, thus making it illegal to shoot a robin in South Dakota.

The Migratory Birds Treaty Act was one of the first environmental laws and was designed for the protection of migratory birds. The treaty was enacted in a time when many bird species were threatened by the commercial trade in birds and bird feathers.

The Migratory Bird Convention Treaty signed between Canada and the USA about 100 years ago was one of the first internation wildlife treaties. The Treaty was placed into law in Canada with the Migratory Bird Convention Act. The Act makes it illegal to destroy or disturb an "nest" of a listed migratory bird (primarily insectivorous songbirds and waterbirds). This has been generally interpeted to mean an active nest (generally April 15 to July 31 of each year) or the nest of a nesting colony (protected year-round).

protected by Migratory Bird Act

In the United States, woodpeckers are protected by Federal law.