Titmouse
Titmouse , noun
[Old English titemose, titmase; tit small, or a small bird + Anglo-Saxon māse a kind of small bird; akin to Dutch mees a titmouse, German meise, Old High German meisa, Icelandic meisingr. The English form has been influenced by the unrelated word mouse. Compare Tit a small bird.]
(Zoology) Any one of numerous species of small insectivorous singing birds belonging to Parus and allied genera; -- called also tit, and tomtit.
The blue titmouse (Parus coeruleus), the marsh titmouse (Parus palustris), the crested titmouse (Parus cristatus), the great titmouse (Parus major), and the long tailed titmouse (Aegithalos caudatus), are the best-known European species. See Chickadee.