Genus— H lEEACOGLAUX. 
Hieracoglaux Kaup, Isis 1848, col. 768 .. .. Type H. connivens. 
Also spelt — 
Jeraglaux Kaup, Archiv. furNatui^. 1861, p. 104. 
leraglatuc, id., Jardine’s Contr. Orn. 1862, p. 107. 
leroglaux Bonaparte, Rev. Mag., Zool, 1854, p. 643. 
Zeraglaux Gray, Cat. Gen. Subgen. Birds, p. 8, 1865. 
Hiraooglaux Heine, Nomencl. Mus. Heine, p. 248, 1890. 
Larger Strigine birds, with short bills, medium wings, long tails, stout legs 
and strong feet. 
Compared with the preceding genus, the birds are larger, though 
similarly marked, the bill is stouter and more prominent, the nostrils less 
directed forward, not so visible from the frontal view and less obscured by 
bristles from the side view. The wing is longer, with the wing formula 
similar. The tail is longer and practically straight, but equally proportional. 
The legs, however, are of practically the same length, but much 
stouter and more powerful and therefore comparatively shorter. The 
toes are much longer and very stout and are about the same length as 
the tarsus. 
The two genera, which have been commonly confused, can be separated 
at once by the difference in the formation of the feet, and that internal 
characters easily recognisable will be noted upon examination seems 
indubitable. 
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