Portland Bird Observatory
and Field Centre
Eastern Olivaceous Warbler Hippolais pallida elaeica
Portland Bill, August 31st 2003
|
photos © Martin Cade
|
 |
 |
Portland Bird Observatory
and Field Centre
Eastern Olivaceous Warbler Hippolais pallida elaeica
Portland Bill, August 31st 2003
Selected biometry (measurements in mm; primaries numbered ascendently) Bill length (to feathering) 11.7 Bill width (at proximal end of nostrils) 3.5 Bill depth (at proximal end of nostrils) 2.4 Wing length (maximum chord) 64.5 Tail length 51 Tail/wing ratio (x100) 79 Wing-point P3 Emarginations P3, P4, P5 1st primary < 2nd primary 29 2nd primary < wing-tip 5 6th primary < wing-tip 5 Tarsus length 19.8
photos © Martin Cade