Thursday 27 October 2011

RBF for sure!!

After last weeks Taiga/Rb flycatcher we had a definite Red breasted flycatcher on wednesday morning. the bird had a much lighter bill with the pink underneath covering a much larger area and the rest being more yellowish. the upper tail coverts were clearly lighter than the tail. the tertials showed small white wedges that did not extend into the outer web. the measurements for the two birds were

Taiga/rbf
P2 < wing tip 7.15mm
P2 = P6
P3 and P4 longest
P1 < P2 28.85mm
wing 71mm
tail 55mm
Bill to skull 12 .91mm
bill depth at back of nostrils 3.43mm

RB Flycatcher
P2 < wing tip 5.26mm
P2 = P6
P3 and P4 longest
P1 < P2 28.19mm
wing 68mm
tail 51mm
Bill to skull 12 .56mm
bill depth at back of nostrils 3.19mm

the photographs were taken by chris with his canon but unfortunately did not come out well and do not show the clear differences






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