Nature Has No Calendar

Swamp Rose (Rosa palustris)

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2 Comments on “Nature Has No Calendar

  1. The variety of subjects you found to photograph offers no evidence of the drought your words revealed. You clearly had a good time on your familiar foray into nature in the Green Swamp. And hopefully the lack of rain significantly reduced the mosquito population.

    Good contours-revealing shot of the white ibis overhead. Your picture got me to pose a question to AI: “Does the black at the tips of a white ibis’s wings serve any purpose?” Here’s the answer that came back:

    “Yes, the black tips on a White Ibis (Eudocimus albus) wing serve important structural and aerodynamic purposes. The dark coloration comes from melanin, a pigment that provides distinct functional benefits… Feathers containing melanin are physically stronger and more resistant to wear, tear, and fraying…. The outermost wing feathers (the primaries) endure the highest friction and aerodynamic stress during flight, making extra strength essential…. Studies on avian flight feathers indicate that the pigmented dark areas absorb heat faster than white areas, creating tiny localized temperature and air-density differences that can generate subtle extra lift and reduce drag while soaring.”

    You closed with a picture of something central Texas shares with you: coral honeysuckle.

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    • Thank you very much, Steve, for your gracious comments.

      That is fascinating information about the Ibis’ wingtips. It’s fun each year to be with new birders encountering young White Ibises, which are brown with no black on the wingtips.

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