islandica


Photographer

Dick Newell

Date

9th June 2002

Location

East Anglia

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Wing 204mm, Bill 92mm, Tarsus 61mm
Date of death "early May" (first 2 weeks)
Cause of death: hit power lines

BWP for islandica male bill:
Sample of 8 birds
Mean 79.6
Standard deviation 2.98
Range 76 to 84
Theoretical maximum (mean+3s.d.) 88.5 (my calculation)

BTO Guide 17: "Guide to the Identification and Ageing of Holarctic Waders" gives a slightly larger range: 74-85mm

The standard deviation is by far the lowest of all samples quoted, so my guess is that the BWP islandica sample may be too small to infer with certainty that this bird is not a male islandica


P01424

P01425

P01426

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