Have you tried simple copy and paste???!!!
Control J to duplicate layer of image you are extracting from (because the background layer is part protected)
Do your selection in copy layer; copy and paste which will create a new layer with nothing in but the bird, which can have edges tidied etc if necessary
Turn off all other layers
Copy and paste to host image, where it will appear on its own new layer so you can move it about
If it is wrong size/wrong brightness etc, return to bird image, correct and recopy