The two living species are distinguishable at a glance.
Jickeli (28) that the species are distinguishable by the characters of their nematocysts.
In North America there is a second distinct smaller species, called the coyote or prairie-wolf (Canis latrans), and perhaps the Japanese wolf (C. hodophylax) may be distinct, although, except for its smaller size and shorter legs, it is scarcely distinguishable from the common species.
It is distinguishable by its uniform greyishbrown primaries, which want the tawny bars that characterize B.
We have homely genera, even among the true Passeres, occurring there - such as Alauda, Acrocephalus, Motacilla and Pratincola, while the Cisticola madagascariensis is only distinguishable from the well-known fan-tailed warbler, C. schoenicola of Europe, Africa and India by its rather darker coloration.