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Ultraviolet bird eyes: songbirds and parrots

88 animals on this site have this kind of eyes, including the European starling, the house sparrow and the American tree sparrow. The European starling: an European starling sees with 4 colour types; you have 3. Pick one and try its eyes on your photo.

Red tulips under a blue sky, as you see them.Red tulips under a blue sky as an European starling sees them (simulation): colours remapped to its 4 receptor classes, and fine detail softened.
Try it on your photo

A simulation made from published eye studies. Not what the animal feels.

The same photo through their eyes

The same tulips as an European starling sees them.European starling4 kinds of colourThe same tulips as a house sparrow sees them.House sparrow4 kinds of colourThe same tulips as an American tree sparrow sees them.American tree sparrow9.1 times blurrier than youThe same tulips as a brown-headed cowbird sees them.Brown-headed cowbird13 times blurrier than youThe same tulips as a budgerigar sees them.Budgerigar4 kinds of colourThe same tulips as a chipping sparrow sees them.Chipping sparrow9.6 times blurrier than youThe same tulips as a dark-eyed junco sees them.Dark-eyed junco9.7 times blurrier than youThe same tulips as an eastern meadowlark sees them.Eastern meadowlark6.3 times blurrier than youThe same tulips as an eastern towhee sees them.Eastern towhee7.6 times blurrier than youThe same tulips as a field sparrow sees them.Field sparrow8.6 times blurrier than youThe same tulips as a rook sees them.Rook4 kinds of colourThe same tulips as a song sparrow sees them.Song sparrow9 times blurrier than youThe same tulips as a tufted titmouse sees them.Tufted titmouse9.7 times blurrier than youThe same tulips as a white-breasted nuthatch sees them.White-breasted nuthatch9.3 times blurrier than youThe same tulips as a white-throated sparrow sees them.White-throated sparrow8.3 times blurrier than youThe same tulips as an Anna's hummingbird sees them.Anna's hummingbird11 times blurrier than youThe same tulips as a blue jay sees them.Blue jay3.4 times blurrier than youThe same tulips as a blue tit sees them.Blue tit4 kinds of colourThe same tulips as a common blackbird sees them.Common blackbird4 kinds of colourThe same tulips as an Indian peafowl sees them.Indian peafowl4 kinds of colourThe same tulips as a white-crowned sparrow sees them.White-crowned sparrow11 times blurrier than you

Play today's Guess the Eye: can you tell these eyes apart?

Animals with these eyes

The science behind it