It's a laughing gull. I wasn't so interested in the image to be able to ID the bird, but I loved the face for the two eyes in the black head staring at me. I also loved the dawn light on the leading edges of the wings.
In truth, getting BIF images IS quite challenging. The larger birds (herons and the like) tend to be more predictable in flight and you can set yourself up to get them. The smaller songbirds are a royal pain because they flit from one branch to the next and, if you want to get a decent image, you need to be pretty close to them (which scares them away). To get reproducible results, you really need a relatively long lens (I use my EF400mm f/5.6L which is on the short end. Most pro bird photographers use the 500 f/4 or the 600 f/4 and often with a 1.4X TC. Often these are used on a gimbal-mount tripod head - also expensive). Hummingbirds are a nightmare.