ML366004171

Age

Not specified

Sex

Not specified

Observation details

lone white-eye foraging above us in flowering bush at a road cut; we were uncertain of which white-eye occurs here, and that grew more complicated with eBird's 2021 taxonomic update a month after we returned home. Z. a. stierlingi appears to be the highland taxa in east Tanzania (Pale White-eye Z. flavilateralis is apparently the lowland white-eye in the thornscrub below the Rubehos; we could use more specific information). Photos. Further note: research reveals that Fjeldsa et al. (2010) Distribution of highland forest birds across a potential dispersal barrier in the Eastern Arc Mts of Tanzania, Steenstrupia 32: 1-43, reported that their extensive surveys, that included several locations in the Rubeho Mts., located only Zosterops senegalensis [called African Yellow White-eye at the time] in the forest from 1200-2290m. Subspecies stierlingi was then a race of senegalensis (e.g., Howard & Moore, 4th ed) and is now a race of anderssoni. This strongly supports our allocation of our lone white-eye to A. anderssoni. Our elevation in the forest at 1890m is within the elevational range of the species we have used here.

Technical information

Model

Canon EOS 7D Mark II

Lens

EF100-400mm f/4.5-5.6L IS II USM

ISO

2000

Focal length

400 mm

Flash

Flash did not fire

f-stop

f/5.6

Shutter speed

1/1000 sec

Dimensions

1582 pixels x 1094 pixels

Original file size

247.13 KB