This afternoon around 2 pm there was a yellow-billed cuckoo at Confluence Ponds in Boulder, near planked pedestrian bridge. Slender bird with white spots on long tail.Brown back and crown contrasting with white belly and chin. Dark eyes. Down-curved bi-colored bill, dark upper mandible, yellow lower. https://ebird.org/view/checklist/S45644389. First spotted by Ernest Crvich.