This form needs some serious taxonomic work. The taxon disjunctus in the East Zim highlands is a different species and has been incorrectly lumped with milanjensis. The bird in the East Zim highlands is more consistent with kikuyuensis Mountain Greenbul than with milanjensis. The Stripe-cheeked/faced (which is the sister bird to A. montanus of west Africa) is a bird of volcanoes and East Arc shield rock. The mountain group (kikuyuensis in it’s various guises) is a bird of domed ground associated with tectonic uplift but not necessarily volcanic. Milanjensis is restricted to southern Malawi and Gorongosa and should be considered separately from disjunctus in Zim-Moz. I have slides prepared detailing these differences if they are of interest but disjunctus is a Mountain Greenbul, not a Stripe-faced.
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