Very grey, overcast day, with the bird in the shadow of lots of foliage. Hand-held shot, hence the high shutter speed and ISO. F9 for a little bit of insurance on the focus.
Someone with a little bit more pp savvy could probably sharpen up the image, and remove some high ISO noise. Me, I max out with cropping and playing around with exposure!!
If interested, click on the image to see the original .DNG file on my OneDrive (Give it a good 5 or more seconds for the image to sharpen up - not as instantaneous as Flickr)