Yesterday I had my camera on a tripod next to a bird bath. I captured a number of different birds in different shots. I'd like to make a composite image using 5 or even 10 shots and place all the different birds into my favorite exposure of the bird bath. I opened two shots in PS as layers and was able to use a layer mask and the paint brush to add a bird from the second layer onto the first layer. It worked but I don't know how to find the edges of the bird without revealing too much of the background. It seemed like it would be a tedious process for all the layers I want. Also a big file size with several raw files as layers.. Can I use an easier selection tool in conjunction with the layer mask? Should I do it another way, like using a selection tool on the birds and copy/paste? I know this is pretty basic and there are videos available.. but if I can get pointed in the best/ most efficient direction I could probably find my way. I'm using the subscription version of PS on a windows machine. Thanks in advance!