Blue Grosbeakhttp://www.pwrc.usgs.gov/resshow/banks/banks1.htm, is a medium-sized seed

Seed

A seed is a small embryonic plant enclosed in a covering called the seed coat, usually with some stored food. It is the product of the ripened ovule of gymnosperm and angiosperm plants which occurs after fertilization and some growth within the mother plant...

-eating bird

Bird

Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

 in the same family as the Northern Cardinal

Northern Cardinal

The Northern Cardinal or Redbird or Common Cardinal is a North American bird in the genus Cardinalis. It can be found in southern Canada, through the eastern United States from Maine to Texas and south through Mexico...

, "tropical" or New World buntings, and "cardinal-grosbeaks" or New World grosbeaks.

The Blue Grosbeak is a migratory bird, with nesting grounds across most of the southern half of the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 and much of northern Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

, migrating south to Central America

Central America

Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...

 and in very small numbers to northern South America

South America

South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

; the southernmost record comes from eastern Ecuador

Ecuador

Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

.