Black-throated Blue Warbler Nest Building
While out on our big 110 bird day we came across this female Black-throated Blue Warbler doing some nest building. I knew we would be coming back to this same location; so I set up my digital camera. I took the video in lower quality so that I could get about 22 minutes of the female doing continuous nest building. I edited the clip down to the best minute with her completely focused on making the nest perfect.
This area had Yellow-throated Vireos, Cerulean Warblers, Winter Wrens, Wood Thrush, American Redstarts, Hooded Warblers, Black-throated Green Warblers and of course the Black-throated Blue Warbler singing. Was a perfect location to start our big day and we found so many wonderful birds doing nest building (including the Cerulean Warblers and American Redstarts). They were all too high to get any clips and of course I now know that I need to get some more memory disc space for cases like this.
As posted above the males and females look entirely different. This is so that the female is more camouflage while sitting. She built the nest in a small tree or saplings fork around 1-3 feet from the ground. The literature states that it is a fairly bulky cup and built with bark strips, moss, dead leaves and rotten wood fragments. Everything is put together with spiders’ webs and lined with hair and hair-like rootlets. The female is the only one to brood the eggs and once the nestlings hatch, the young are then tended by both of the parents.