Genus Pygmornis Bonap.

We now come to that section to which Bonaparte gave the generic name of Pygmornis.

As the term implies, these birds are all extremely diminutive; so minute, indeed, are they, that, if subjected to the balance, their tiny bodies must be weighed by grains. That these mites of birds perform some important office in the scale of nature is certain, from the number both of species and individuals: they are very widely dispersed over every part of the great country which is inhabited by this extensive family of birds; with the exception of one species, however (the P. Adolphi), they all fly to the southward of the Isthmus of Panama. How minute must be the insects taken by these diminutive birds, how perfect must be their vision, and how delicately sensitive must be their tongue!

The only external difference between the sexes consists in the longer and more graduated tails of the females; in colour they are as nearly alike as possible.

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Featuring all 422 illustrated species from John Gould’s A Monograph of the Trochilidæ, or Family of Humming-Birds arranged by color.