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COSEWIC assessment and status report on the Red Crossbill percna subspecies Loxia curvirostra percna in Canada

Appendices

Appendix 1

Morphometric Measurements of Red Crossbill, percna Subspecies
SourceBody (mm)Wing (mm)Tail (mm)Tarsus(mm)
Griscom (1937)- F = 91 – 96.5--
Peters and Burleigh(1951)140 - 165About 95--
Godfrey (1966)-Adult M = 88.3 – 97.7
(mean 91.7)
Adult F = 87.2 – 92.3
(mean 89.5)
53 – 59.4 (mean 55.9)16.3 – 17.8 (mean 17.1)
Payne (1987)-

Wing arc:
M = 92.70 ± 1.70  (43)
F = 90.14 ± 2.31 (21)

Chord:
M = 92.02 ± 1.70  (43)
F = 89.48 ± 2.11 (21)

-M = 16.52 ± 0.62 (43)
F = 16.47 ± 0.76 (22)
Pyle (1997)-M = 89 - 97 (43)
F = 85 - 93 (21)
M = 52 - 59 (10)
F = 49 - 56 (10)
-
Wren (unpublished data)160.4 ± 5.8 (8)---

Values include single measurements, means + SEs or ranges.  Sample sizes in ( ), when specified. F = female, M = male.


Appendix 2

Bill Measurements of Red Crossbill, percna Subspecies
SourceLength (mm)Depth (mm)Width (mm)
Griscom (1937)Culmen: M = 17 – 19M = 10.3 – 11.5-
Peters and Burleigh(1951)17.8--
Godfrey (1966)Exposed culmen: 17 – 18.6
(mean 17.7)
- 
Payne (1987)Upper mandible (nares to tip):
M = 15.16 ± 0.52 (42)
F = 15.05 ± 0.74 (22)

Upper mandible (base of feathers to tip):
M = 17.91 ± 0.57 (42)
F = 17.76 ± 0.93 (22)
M = 10.54 ± 0.35 (41)
F  = 10.49 ± 0.43 (21)
Upper mandible at anterior edge of nares:
M = 7.23 ± 0.33 (42)
F =  7.23 ± 0.33 (21)

Lower mandible at margins of rami:
M = 10.01 ± 0.60 (42)
F =  9.69 ± 0.45 (21)
Benkman (1989; 1993c)Upper mandible (nares to tip): 14.9 ± 0.18 (10)
Lower mandible (nares to tip): 11.0 ± 0.16 (10)
At nares: 10.6 ± 0.10 (10)Upper mandible at anterior edge of nares: 8.1 ± 0.09 (10)
Pyle (1997)Nares to tip: 13.5 – 16.4At tip of nares: 9.6 – 11.4-
Wren (unpublished data)Upper mandible:
14.3 ± 1.02 (33)
Lower mandible:
11.0 ± 0.49 (33)
Upper mandible:
6.4 ± 0.31 (33)
Lower mandible:
4.5 ± 0.5 (33)
Upper mandible:
6.3 ± 0.63 (33)
Lower mandible:
8.0 ± 0.71 (33)

Values include single measurements, means + SEs, or ranges.  Sample sizes in ( ), when specified. F = female, M = male.

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