Previously overlooked expansions of the 'bles' in the blesbok (Damaliscus pygargus phillipsi), signifying full maturity, beyond adulthood

Many photos of the blesbok (Damaliscus pygargus phillipsi) show individuals in which

This spreading of the facial bleeze - which I have not seen mentioned in the literature - may possibly be a sign of age (exceeding ten years). This is indicated by the fact that many of the photos concerned are of captive specimens.

The ultimate result is seen in

Most of the photos below refer to females, but males also show this pattern (e.g. and and

We now know of at least three aspects of the colouration of the blesbok that show particular depigmentation, compared to the bontebok (Damaliscus pygargus pygargus), viz.

The pattern on the cheeks, described here, occurs also in the bontebok ( However, it is faint and uncommon in that subspecies. and

Please note the extremely long horns, indicating advanced age, in the central figure in

Also see and

For an index to my many Posts about the genus Damaliscus, please see

Publicado el marzo 1, 2023 09:23 TARDE por milewski milewski


The following adult male individual, which is territorial judging from the glandular staining on the facial bleeze, seems to show the beginning of an expansion of pale on the sides of the face:

Publicado por milewski hace más de 1 año
Publicado por milewski hace más de 1 año

The following is possibly the clearest illustration I have ever seen of multi-facetted extension of the facial bleeze in adult males of the blesbok:

Publicado por milewski hace 12 meses

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