Color and morphological measurements of an amelanotic Steller's jay feather, a normal blue Steller's jay feather and a white chicken feather
| . | . | . | . | Chroma (%) . | . | Thickness (nm) . | . | ||
|---|---|---|---|---|---|---|---|---|---|
| Feather . | Hue (nm) . | Predicted hue (nm) . | Brightness (%) . | UV . | Blue . | Spongy layer . | Cortex . | ||
| Blue | 413 | 441 | 8.08 | 27.20 | 33.28 | 4474.41 | 8383.77 | ||
| Amelanotic | 514 | 493 | 37.93 | 20.37 | 30.37 | 6313.93 | 12052.33 | ||
| White | n/a | n/a | 32.94 | 15.92 | 28.81 | n/a | 7386.47 | ||
| . | . | . | . | Chroma (%) . | . | Thickness (nm) . | . | ||
|---|---|---|---|---|---|---|---|---|---|
| Feather . | Hue (nm) . | Predicted hue (nm) . | Brightness (%) . | UV . | Blue . | Spongy layer . | Cortex . | ||
| Blue | 413 | 441 | 8.08 | 27.20 | 33.28 | 4474.41 | 8383.77 | ||
| Amelanotic | 514 | 493 | 37.93 | 20.37 | 30.37 | 6313.93 | 12052.33 | ||
| White | n/a | n/a | 32.94 | 15.92 | 28.81 | n/a | 7386.47 | ||