Hand held, taken inthe field at the back of my house, unfortunately there was a breeze and no matter what I couldn't get the whole wing in focus.
Image input equipment model : E-M1X
Lens Model : M.300mm F4.0 + MC-14
Lens focal length : 420 mm
Focal length in 35 mm film : 841.0mm
Exposure mode : Manual exposure
Photographic Sensitivity : 640
Exposure bias : 0 EV
Exposure time : 1/640 sec
F number : F8
Flash : OFF
The metachromatic hue next to the eye is probably light dispersion as it hits the fur, depending on the angle from which it was taken it became increasingly green/yellow.