AEgithalos caudatus

Titmouse Tit"mouse`, n.; pl. {Titmice}. [OE. titemose, titmase; tit small, or a small bird + AS. m[=a]se a kind of small bird; akin to D. mees a titmouse, G. meise, OHG. meisa, Icel. meisingr. The English form has been influenced by the unrelated word mouse. Cf. {Tit} a small bird.] (Zo["o]l.) Any one of numerous species of small insectivorous singing birds belonging to {Parus} and allied genera; -- called also {tit}, and {tomtit}. [1913 Webster]

Note: The blue titmouse ({Parus c[oe]ruleus}), the marsh titmouse ({Parus palustris}), the crested titmouse ({Parus cristatus}), the great titmouse ({Parus major}), and the long tailed titmouse ({[AE]githalos caudatus}), are the best-known European species. See {Chickadee}. [1913 Webster]