Component loadings | Reduced external measurement set A, both sexes | Reduced external measurement set B, both sexes | Full external measurement set, males only | |||
---|---|---|---|---|---|---|
PC1 | PC 2 | PC1 | PC 2 | PC 1 | PC 2 | |
External measurements | ||||||
Culmen l from skull | −0.49 | 0.04 | ||||
Bill w from distal nares | −0.03 | 0.10 | −0.12 | −0.06 | ||
Bill d from distal nares | −0.17 | 0.05 | ||||
Culmen ridge w | 0.03 | 0.06 | ||||
Bill hook l | −0.09 | 0.10 | ||||
Rictal bristle maximum l | −0.29 | −0.09 | ||||
Wing l (flat and stretched) | 5.45 | 0.28 | 3.70 | 4.00 | 2.64 | 4.09 |
Wingtip l | 0.55 | 1.82 | ||||
Tail l | 7.81 | −1.89 | 8.75 | 1.52 | ||
White on outer rectrix, maximum | 3.30 | − 5.55 | ||||
White on outer rectrix, minimum | 2.42 | −2.99 | ||||
Tarsus l | 0.87 | −1.74 | 1.33 | 0.01 | 1.28 | 0.40 |
Hind claw l | −0.11 | 0.23 | ||||
Eigenvalues | 30.45 | 3.13 | 76.40 | 19.38 | 102.56 | 62.32 |
% total variance explained | 90.22 | 9.28 | 77.83 | 19.74 | 51.78 | 31.45 |
Plumage scoring | ||||||
Lower mandible base color | 0.99 | −0.01 | ||||
Crown color | 1.36 | −0.77 | ||||
Supraloral | 1.24 | 0.28 | ||||
Lores | 1.81 | 0.09 | ||||
Auriculars % pale | 0.39 | 0.08 | ||||
Submoustachial prominence | 1.16 | −0.12 | ||||
Malar strength | 1.41 | 0.03 | ||||
Throat color | 1.82 | 0.01 | ||||
Throat markings | −0.27 | 0.81 | ||||
Central breast marking shape | 0.7 | −0.88 | ||||
Central breast marking density | 0.77 | 0.56 | ||||
Flank marking shape | 0.24 | 2.44 | ||||
Flank marking density | 0.65 | 0.33 | ||||
Undertail–tail tip contrast | 1.60 | −0.86 | ||||
Claws darkness | 1.16 | −1.61 | ||||
Folded wing pattern strength | − 1.05 | −0.47 | ||||
Secondary covert edge width | 1.49 | 1.86 | ||||
Secondary covert edge color | 0.74 | 0.42 | ||||
Upperparts color | 1.74 | −0.41 | ||||
Eigenvalues | 26.37 | 15.89 | ||||
% of total variance explained | 36.29 | 21.87 |