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Table 2 Morphometric data obtained from an individual of ‘S. omanensis’ (=S. butleri) caught in the Al Hajar range, northern Oman on 2 March 2015

From: The rediscovery of Strix butleri (Hume, 1878) in Oman and Iran, with molecular resolution of the identity of Strix omanensis Robb, van den Berg and Constantine, 2013

Variable

State

Tarsus

67.4 mm

Wing

255 mm

Tail

142 mm

Tail graduation

15 mm

Bill (upper mandible from skull to tip)

31.85 mm

Bill (skull to nostrils)

17.7 mm

Bill (skull to centre of curve)

24 mm

Bill depth at end of feathering

14.0 mm

Bill depth from top of cere

16.0 mm

Weight

220 g

Moult

p1 + p2 old on left wing

Primary 1 to wingtip

56 mm

P2 to wingtip

13 mm

P3 to wingtip

0 mm

P4 to wingtip

0 mm

P5 to wingtip

8 mm

P6 to wingtip

33 mm

P7 to wingtip

50 mm

P8 to wingtip

60 mm

P9 to wingtip

71 mm

P10 to wingtip

80 mm

Secondary 1—wingtip

93 mm

P1 falls

Between 7 + 8

P2 falls

Between 5 + 6