Description
The Dark Batis is about 10 centimetres in length and weighs 10-15 grams. It has a dark bill and legs and red eyes. The male is white below with a broad black breastband. Above it has a dark grey crown, grey back with some black feather-tips, a black face-mask and black wings with a white stripe. The female has a greyish crown, brownish back, dark mask, slight white supercilium and a narrow rufous stripe on the wing. Below it has a rufous chin-spot and breast with whitish tips to some of the feathers.
The Forest Batis has a slightly shorter tail. Males of the two species are very similar but Forest Batises have a narrower breastband and usually some hint of a white supercilium which is lacking in the male Dark Batis. The females are more distinctive: female Forest Batises have a paler breast and chin with more white tips giving a mottled appearance. There is a conspicuous white supercilium and a broad rufous wing-stripe.
The Dark Batis has a variety of whistling and harsh churring calls and its wings make a whirring sound in flight. The male's song is a series of short, low whistles.
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“As they are not seen on their way down the streams, it is thought by fishermen that they never return, but waste away and die, clinging to rocks and stumps of trees for an indefinite period; a tragic feature in the scenery of the river bottoms worthy to be remembered with Shakespeare’s description of the sea-floor.”
—Henry David Thoreau (1817–1862)
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—Horace Walpole (1717–1797)
“The next Augustan age will dawn on the other side of the Atlantic. There will, perhaps, be a Thucydides at Boston, a Xenophon at New York, and, in time, a Virgil at Mexico, and a Newton at Peru. At last, some curious traveller from Lima will visit England and give a description of the ruins of St. Paul’s, like the editions of Balbec and Palmyra.”
—Horace Walpole (1717–1797)