Name a Valid Compound Word

Fun quiz, thanks. This quiz highlights the shortcomings of the Scrabble dictionary. That book has many "acceptable" words that I have never heard spoken, and only very rarely seen in print--and I am somewhat of an antiquarian. Meanwhile, there are thousands of words that are often spoken and written today, but which the Scrabble dictionary omits. One of these is "thornbird," which is born by at least ten species of South American birds. A day does not go by on which at least several bird-watchers use this word. I myself probably said it, heard it spoken, wrote it, and read it at least fifty times, a couple of months ago on a bird-watching trip.