Lifer!!! (but not sure what species) I am thinking Golden-winged Warbler though.
UW SER monitor member. Difficult ID - clearly some parulid, yellow edging on feathers narrows it to CSWA, BBWA/BPWA, CMWA, and NOPA. Tail (not shown in pic) had blue edging, ruling out all but NOPA.
Little guy dropped his food on top of the Ion shelter
We found this right above one of our tents in Mahoora Tent Camp near Wilpattu during the Quest Nature Tour I was leading. Seen by Graham and Sharon Nancekivell and myself. We heard it do a high pitched call first. It was surprisingly fast as it scrabbled through the branches. Probably my favourite sighting of the trip!