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Appendix. Summary of morphological characteristics of North American subspecies of Steller’s Jay. Data shown as mean (range). Data compiled from Ridgway 1904), except data with relative crest length which is Brown 1963b.

SubspeciesnWing-chord length (mm)Tail length (mm)Exposed culmen length (mm)Tarsus length (mm)Relative crest length(2)
C. s. annectens
Male14153 (149–157)28 (27–31)
5154 (147–164)148 (141–160)26 (26–28)43 (42–43)
Female4148 (148–150)143 (139–145)26 (25–28)42 (41–44)
C. s. carbonacea
Male23143 (135–152)31 (29–33)
9150 (140–158)140 (134–146)29 (27–32)44 (42–46)
Female10143 (136–146)131 (125–138)28 (25–30)43 (39–45)
21136 (132–145)31 (28–34)
C. s. carlottae
Male4156 (155–161 )30 (29–32)48 (47–50)
Female11621523048
C. s. frontalis
Male4146 (144–150)136 (134–140)30 (28–30)42 (41–44)
Female4140 (136–145)26 (26–28)40 (38–41)
C. s. macrolopha
Male22148 (142–156)34 (31–37)
8154 (148–160)142 (131–153)28 (28–29)44 (42–45)
Female7145 (136–153)131 (122–142)26 (26–28)42 (40–44)
C. s. stelleri
Male16151 (144–159)30 (27–33)
21149 (142–155)31 (28–32)46 (44–50)30 (28–32)
12151 (144–160)139 (133–150)
Female10149 (142–157)137 (128–147)30 (28–31)46 (44–48)