The Collaborative International Dictionary of English v.0.48:
Missel \Mis"sel\, n. Mistletoe. [Obs.] [1913 Webster] Missel bird, Missel thrush (Zool.), a large European thrush (Turdus viscivorus) which feeds on the berries of the mistletoe; -- called also mistletoe thrush and missel. [1913 Webster]