Just wondering, I have heard about that pvc joint pipe used as a drop trap, just wondering if you can tell me size it is?
Another idea is what I finally decided to use, a 45 degree 4 inch pvc elbow. My loft is a converted play house I built for my daughter 18 years or so ago. A little modification to add a aviary to the front and I put a landing board on the side next to it, with the two 45 degree elbows on the side of the loft. I love it, and the birds just drop right down into the loft and seem to like it as well.
This is what Tennman1 said in another post. PM him if you need to but 4 inch 45 degree pvc elbow should work. My drop trap is 4 inch wide.