I spend a week in Portland Oregon every winter for work and last year, February 2020, there was a noticeable increase in the crow population in the downtown area. The crows were roosting by the hundreds in the large trees in the park that runs along the west side of the Willamette River and foraging on insects emerging from the ground in the park. The crows were roosting by the tens in all the smaller trees up to a few blocks inland from the water. It was amazing to see and one of the reasons I was interested in taking this course and finding out more about crows.