Pine Warbler

I’ve spotted a couple of Pine Warblers in my yard. They come to my bird feeder to get black-oiled sunflower seeds and I’ve seen them in the pine trees in my front yard. There must be many more though because I keep hearing their steady trilling song in the trees all around my yard. You would think a bright yellow bird would be easy to spot, but unless they are moving around, it is hard to find them.