Related Program: NatureNotes Blue-Gray Gnatcatcher Nests By Rudy Mancke • May 8, 2020 Related Program: NatureNotes ShareTweetEmail View Slideshow 1 of 2 A Blue-gray Gnatcatcher nest. USGS Bee Inventory and Monitoring Lab [Public Domain Mark 1.0] via Flickr View Slideshow 2 of 2 Kelly Colgan Azar, via Flickr [CC BY-ND 2.0] This bird uses lichens on the outside of its nest, which is good camouflage. Listen Listening... / 1:00 Listen... NatureNotes is a production of South Carolina Public Radio. Tags: NatureNatureNotesscetv.orgSCETV AppShareTweetEmailView the discussion thread.