These birds live in my father's barn, they are so incredibly fast that I cannot compare them to anything I have ever seen before. They eat bugs out of the air over the pond, and they are playful, and impossible to photograph at all before I got a d2h, shots are with 70-200VR and some also with 1.4TC Looking at my pictures, I think we have two different birds here, the one in the fourth picture is so different, but I dunno. In the air they look like a blur of color that shines blue in the sun on their back. They cartwheel around and change direction like acrobats ok this other bird my dad says is a gold finch, but it was bigger than any finch I have ever seen, it was almost as big as a robin. This picture is cropped so it looks poor, but if anyone can identify this bird for sure I would love to know.