Moultrie Feeders HD Ol' Yeller Mouth Call Yellow. Produce loud raspy yelps cuts and clucks to get the gobblers attention at a distance and draw it back with soft purrs when he gets up close. Specifications for Moultrie Feeders HD Ol' Yeller Mouth Call: Manufacturer: Moultrie Feeders Color: Yellow Fabric/Material: Aluminum Latex Species: Turkey Call Type: Mouth Call Package Contents: Moultrie Feeders HD Ol' Yeller Mouth Call Moultrie Feeders KHT0246: HD Ol' Yeller Mouth Call Yellow