The PINE-TREE CROSS-BILL (_Loxia curvirostra_), or FIR-PARROT, is a
somewhat weaker and more slender bird than the preceding. Its length is
from six to six and a half inches; its width across the wings ten and a
half to eleven and a half inches. This species is distinguished from the
foregoing by its longer and more delicate beak; the plumage of both birds
being similarly coloured.