Saturation & Highlights
p.1 #1Saturation & Highlights
Many who have not seen Black Oystercatchers in real life believe that the color of their eyes and beaks has been over-saturated in post-processed photos. That is not the case.
Female Black Oystercatchers can be identified by the presence of prominent, dark, irregular "eye flecks" or pigment spots within their bright yellow irises, often making the black pupil appear larger or irregularly shaped. These dark spots, which are more extensive and consistent in females compared to males, provide a reliable, high-accuracy (approx. 94%) field method for determining the sex of adults.
Great Blue Heron
Female Black Oystercatchers can be identified by the presence of prominent, dark, irregular "eye flecks" or pigment spots within their bright yellow irises, often making the black pupil appear larger or irregularly shaped. These dark spots, which are more extensive and consistent in females compared to males, provide a reliable, high-accuracy (approx. 94%) field method for determining the sex of adults.
Great Blue Heron
Dec 27, 2025 at 10:18 PM
p.1 #2Saturation & Highlights
Thanks for that info Tony. Very helpful.
Alan
Alan
Dec 28, 2025 at 02:26 PM