Which of the following birds can be legally hunted with a raptor?

The American crow is a bird that can be legally hunted with a raptor. This is due to various regulations surrounding hunting and falconry that specify which species can be pursued with trained birds of prey. In many jurisdictions, crows are classified as migratory game birds, and hunting them is permitted during specific seasons, making them a viable target for falconry.

The other choices present species that are protected or have regulations that typically prohibit hunting them with raptors. Pigeons, while often considered pests, do not generally fall under the same regulatory framework as crows. Robins, being songbirds, are protected under the Migratory Bird Treaty Act, which prohibits their hunting. Seagulls are also protected under various state and federal regulations, making them illegal to hunt without special permits. Therefore, the American crow stands out as the legally permissible choice for hunting with a raptor.