I first thought of TB Glitter Gulch, a vibrant yellow that is outstanding in the garden with lovely spoons/wings.
But I finally decided on Hagar's Helmet, a lovely mellow yellow IB that was introduced in 1977. Horns or spoons on a short bloom stalk.
I have several clumps of Thornbird and some of the blossoms in one clump have both horns and spoons and I really enjoy seeing what it blooms with but it is not my favorite right now. Perhaps with the gloomy weather yellow just seems more cheerful.