Found on seed pod of cirsium discolor
Smaller than the average-sized crow chasing it
this observation is for the ring-necked duck (on the right side of the center group)
this observation is for the greater scaup(front row on the center)
Who the heck made this hole?? About 4 inches tall, 5.5 inches across. Massive throw mound. Scat near entrance looks like mink.