Related Program: NatureNotes Blue Gray Gnatcatcher Nests By Rudy Mancke • Mar 19, 2019 Related Program: NatureNotes ShareTweetEmail A Blue-gray Gnatcatcher nest. USGS Bee Inventory and Monitoring Lab [Public Domain Mark 1.0] via Flickr These nests are held together with spider silk. Listen Listening... / 1:00 Listen... NatureNotes is a production of South Carolina Public Radio. Tags: NatureNatureNotesscetv.orgSCETV AppShareTweetEmail