Oriole tongue!
I guess I "have a thing" about birdie tongues. Last year's hummer was the best!. Heck, I can rarely get a bird to pose for pics, much less see the tongue action! In the previous pic, the tongue is tucked on the upper mandible while declaring. Here the tongue is (I believe) tasting. I have other birdie pics where the tongue is working seeds into the correct position for crushing. Who ever thinks about birdie tongues? We know about beaks relative to food sources, but I now suspect the tongue has a major role in the effectiveness of the beak! Anyone know a paper about how birds use their tongues?

(And, I am prompted to ask ... how about humans? It is certainly multi-purpose as well!) Oh, forget that - back to my original question please!