Looks like he had a bad day and is banging his head against a tree:
It's the time of the year that Swallows are back in Poland. There is no summer without their characteristic shriek. They are my favourite birds because of their acrobatic abilities. They are like Dassault/Dornier Alpha Jets - small, nimble, agile. I can watch them dogfight for hours. It's beautiful.
Fantastic color. I’ve seen the Indigo Bunting in New England and those are a vibrant deep blueBeautiful. Didn't know we have birds this colorful in the US. Looks like something from the tropics.
Great Blue Heron. Another of my favorites. They have bright, intelligent eyes. They feed on the frogs in our ditch/dyke system at the farm, and are pretty slow to move from a good feeding spot. So it makes watching them fun, as we can get pretty close without them reluctantly flying off.
Weird...exact opposite experience with these birds in Canada. They will fly away as soon as they see you. They tend to be incredibly shy.