Eastern Kingbird

Eastern Kingbird  How did I get that close with 110mm?  On a Nikon 1 V3 with a 2.7 crop factor, 110mm becomes 297mm.  Also, I was in a kayak drifting without paddling toward the bird.  The branch it’s perched upon is about 5 feet off the water.  Its nest is below it, about 2 feet off the water.  Yes, I stopped the drift and did not threaten the bird or its nest.  This bird looks like an Eastern Kingbird to me.  Certainly, I’m not a birder.  If you think it’s another type of bird, please contact me.