Living in Central NJ, there are many ruby throated hummingbirds in the area. I have seen them at my feeders, as well as in the wild in local parks. I have placed feeders at myn home for many years and I do enjoy seeing and hearing them come and go.
Eye color changing in birds fascinates me. WHY do their eyes change color? WHEN do their eyes change color? is there some purpose for eyes being difference colors?