The word “grosbeak” traces to the late 17th century: from French grosbec, from gros ‘big, fat’ + bec ‘beak’. A Grosbeak’s bill is indisputably big and fat in appearance. Including the Black-headed Grosbeak’s bill. Many bird species, not all of them closely related, have evolved this tool to mash hard seeds. It’s evolved in cardinals, finches and several Old World…