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MARTIN. 
HOUSE MARTIN. MARTIN SWALLOW. WINDOW SWALLOW. 
PLATE LXIII.—FIG. I. 
Hirundo urbica, ; j F Pennant. Monracvu. 
Tue nest of the Martin, which is generally built 
under the eaves of a house, but also frequently on the 
side of a cliff, is of an hemispheric form, and is lined 
inside with a little hay or feathers. 
The eggs are four or five in number, smooth and 
white. Incubation lasts thirteen days. 
The same nest is resorted to from year to year. 
Thus, the Rev. Gilbert White says:—“July 6th., 1783, 
some young Martins came out of the nest over the 
garden door. This nest was built in 1777, and has 
being used ever since.” The young birds of one year 
often add another the following to “The Row” of nests 
which ornament the eaves where their parents have 
built; and sometimes the birds will form a continuous 
line of the mud they build with along the wall, without 
any apparent or discernible motive, for there it remains 
without any use being made of it. The mud they use 
in building is tempered and cemented in some way or 
other, for it will adhere firmly to glass. 
