Evening Grosbeak

Why do these birds have a preference for gravel roads?

Evening Grosbeck_e

Evening Grosbeaks devour surprising quantites of salt. They eat gravel to get minerals, salts, and grit to grind the large number of seeds it consumes. This species has been observed eating 96 sunflower seeds in five minutes.

Evening Grosbeck_b

A group is simply called a “gross” of grosbeaks.