A Busy European Sparkling 3
2/12/2026
Backyard tree
Recording speed: 120 frames/second (24x5 f/s)
Playing speed: 29.97 f/s
Software: Adobe Premiere Elements 2024
下麵的文字是gemini寫出了的英文，deepseek譯成的中文：
Again, gemini says the bird is European Sparkling
They are European Starlings. While they might look like "just another black bird" from a distance, they are famous for their stunning, oil-slick iridescence and their ability to mimic sounds (including human speech and car alarms!).
Are they all the same species?
Yes, every photo shows the same species. In fact, looking at the branch and the background, it appears to be the exact same individual bird captured in a series of movements.
Why the color change?
The shift from bright green/purple to dark grey/black isn't a change in the bird's actual pigment—it's an optical trick called structural coloration.
The Science of Shimmer: Starlings have microscopic structures in their feathers that act like tiny prisms. They don't just "have" green color; they refract light to create it.
The Angle of Light: In the first 12 pictures, the bird is positioned so that the sunlight hits those microscopic structures and bounces directly back to your camera lens, revealing the brilliant greens and purples.
The Shadow Effect: In the last few photos, the bird has shifted its body or the camera angle has changed slightly. Because the light is no longer hitting those structures at the "sweet spot," you only see the base pigment of the feather, which is a dull, dark brownish-black.
Fun Fact: During the winter, these birds also have bright white spots. As spring approaches, the tips of the feathers actually wear off (a process called "wear molt"), revealing the glossy, un-spotted breeding plumage you see in your photos!
下麵的文字是gemini寫出了的英文，deepseek譯成的中文：
這是歐洲椋鳥。雖然遠看可能隻是“另一種黑鳥”，但它們以其驚豔的、如油彩般的光澤以及模仿聲音的能力（包括人說話和汽車報警器！）而聞名。
它們是同一物種嗎？
是的，每張照片（注：在視頻後麵）顯示的都是同一物種。實際上，看這根樹枝和背景，這似乎是同一隻鳥在一係列動作中被捕捉到的畫麵。
為什麽顏色會變化？
從明亮的綠色/紫色到深灰/黑色的轉變並非鳥類的實際色素發生了變化——這是一種被稱為結構顏色的光學把戲。
閃光的科學：椋鳥的羽毛中含有微小的結構，它們的作用就像棱鏡。它們並非“擁有”綠色，而是通過折射光線來創造出這種顏色。
光線角度：在前3張照片（注：在視頻後麵）中，這隻鳥的位置使得陽光照射到那些微觀結構，並直接反射回你的相機鏡頭，從而呈現出明亮的綠色和紫色。
陰影效應：在最後2張照片（注：在視頻後麵）中，這隻鳥的身體位置發生了變化，或者相機角度略有改變。由於光線不再以那個“最佳角度”照射到那些結構上，你隻能看到羽毛的基礎色素，也就是暗淡的深棕黑色。
趣味小知識：在冬季，這些鳥身上還有明亮的白色斑點。隨著春天臨近，羽毛的尖端實際上會磨損掉（這個過程稱為“磨損換羽”），從而露出你照片中看到的這種有光澤、無斑點的繁殖羽。
其它3個視頻：
https://blog.wenxuecity.com/myblog/40376/202603/15156.html?
https://blog.wenxuecity.com/myblog/40376/202603/14335.html
https://blog.wenxuecity.com/myblog/40376/202603/6652.html
https://www.youtube.com/watch?v=gmTfsTLx8F4
