LONG-TAILED TITMOUSE. 179 
with pale yellowish gray. Under parts tinged 
with yellowish brown on the vent and flanks. 
The five birds, which we have just described, 
are all true pari, or typical to the characters 
given to the genus. The next which we have to 
notice, the 
Long-Tailed Titmouse — Parus (Mecis- 
tura) Caudatus. — Parus caudatus , Will. 
Linn. — P. longicaudatus, Priss. — Mecistura 
Vagans, Leach. — La Mesange a longue queue. 
Buff. Temm. — Long-tailed Titmouse of British 
authors . — Varies in some of its proportions, and 
in some parts of its manners, and by Dr Leach 
was removed from the others, under the generic 
title Mecistura, which, by some of our modern 
ornithologists, has been retained as a sub-genus. 
Mr Swainson, on the contrary, considers that this 
bird, and the next, are only the representing 
. forms of the different types, and that they should 
not be separated. It is curious, that in these 
aberrant forms one species only in each has 
yet been discovered. The principal differences 
in the form of the Long-tailed Titmouse, and 
which strike the observer at first sight, are the 
lengthened form produced by the long graduated 
tail, resembling that of a magpie, or some of 
the longer tailed shrikes, and the very short bill, 
concealed almost by the thick downy feathers of 
the forehead. In their nidification also, they 
