Among the smaller birds may be enumerated finches, the siskin, bullfinch, pipit, titmouse, wagtail, lark, fine-crested wren, hedge-sparrow, corn-wren, nut-hatch, starling, swallow, martin, swift, thrush, butcher bird, shrike, dipper, yellow-hammer, ortolan and a warbler (Accentor alpinus).
From a few of these bundles may be extracted not only numbers of raptorial birds, large and small, including owls, but also the hawk-like cuckoo, the shrike, and even the swallow.
Another species of this group, the black cuckoo of India, apparently mimics the black drongo-shrike (Dicrurus ater), the resemblance between the two species being very close.
One of the most perfect cases of mimicry in birds is presented by a Madagascar thrush or babbler (Tylas eduardi), which resembles feather for feather a shrike (Xenopirostris polleni), from the same island.
The Tylas has departed from the normal coloration of its group to take on that of the shrike, a comparatively powerful and pugnacious bird.