Funny thing is, we've mostly only seen the males. Only 2 females and upto 5 males at once. And they are LOVING the black sunflower seeds. Maybe they are full by the time they get up your way and letting the ladies catch up.
And nope, haven't see the evenings. but I will keep an eye out.
You'll know if the Evening Grobeaks are about. They usually travel in a hoard so be prepared to fill up the feeder....LOL