This bird came to my backyard. What is it?

Kenn and Kimberly: This should make you the envy of all your bird-feeding neighbors, because it’s an evening grosbeak—which is now an uncommon bird in the Northeast and Midwest. A few decades ago, evening grosbeaks were much more numerous; large flocks would descend on bird feeders and devour expensive quantities of sunflower seeds. But their numbers have declined in eastern North America, so it’s now a special treat when a flock shows up. The evening grosbeak in the photo is recognizable by its big greenish white beak, gray and gold feathers, and black-and-white wing pattern.