Sight - What Birds Are Capable Of!
White-faced whistling duck (Dendrocygna viduata) sub-Saharan Africa and South America, waterfowl retina is most highly developed in nature. Enabling crisp images through colour-receptive cones within eye, night sight is poor (partial trade-off) for excellent daytime sight.
Spur-winged goose (Plectropterus gambensis) sub-Saharan Africa, geese and ducks see a wider range of colors to guarantee survival like all waterfowl, sight is ten times better than ours. The Spur-winged goose is fast in flight, but not in diving speed.
African fish eagle (Haliaeetus vocifer) sub-Saharan Africa, swooping down of high branches scooping up sizable fish to enjoy on the river bank.
Brown snake eagle (Circaetus cinereus) West East and Southern Africa, sankes slithering through grasses this eagle will take up to three meter long snakes, it's favourite meal.
Peregrine falcon (Falco peregrinus) massive pupils allowing them to cope with ultraviolet light, sight is approximately eight times better than humans, at speed special filters, super adaptive.
Huge thank you Feathered Friends 
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All photography is my own. Any queries or requests please drop a comment below or make contact with me, have a wonderful day! Photography without tripod, go with the flow wherever life takes you. NB: Amateur photographer and bird watcher, keep smiling!
Thought for Today: "If love is a sickness, patience is the remedy." - African Proverb
