4 and 20 plus even more birds

Even though we have a fair amount of snow (again) the birds are saying that spring is definitely on the way.

The first red-winged blackbird showed up on February 21. Then word must've gotten out because 4 and 20 of his friends showed up on March 1.

And, keeping an eye on the arrival of these new and bigger birds, was this large hawk. I am still trying to identify what kind. (Northern Harrier?) He only hung around for a minute or so, and then took off for the other feeder. 

I am hoping Dr Pam can help with the ID, but if anyone else has an idea from these bad pics, please let me know.

Mostly dark gray or grayish brown on the top, mostly white underneath with a stripey tail and wings.

And the last pic is just another of the house finches. They travel in a group that is more like 2 and 10. Over 1,000 visits to the BB so far!

All types of birds were 0 and 0 while the hawk was out there. The crows gave the warning signal. Lay low little birdies!

UPDATE: Dr Pam and Becky the Birder agree that this is likely a Northern Harrier, probably a juvenile.