I don't believe I have seen a head shot of a Cuckoo before. This guy landed at my water drip while I was setup for small Warblers, so I could only get the head and shoulders in the frame. Lucky for me this species likes to stay still for a while, so I was able to take a number of shots of each part of the bird and perch, and then merge them together in Photoshop, giving me a full body image at amost 6.5K pixels long.
Incredible detail, Alan. Very clean background and nice composition. Extremely cool to be able to get an image of your entire subject by stiching multiple images together!