https://studio.youtube.com/channel/UCOYYVgaXwtFJPTovefrnDTg/videos/upload?filter=%5B%5D&sort=%7B%22columnType%22%3A%22date%22%2C%22sortOrder%22%3A%22DESCENDING%22%7D
When we did the chimney swift chute in the back building, we designed swing down doors so we could open it and check on the birds and we were able to clean the bird poop out.
We would sit in the yard and there were hundreds of Chimney Swifts swarming into and out of the chimney.