Tag Archives: birds

Hawk or Dove?

Usually, iNaturalist’s AI is pretty good at narrowing down a plant or animal to a genus, but sometimes it can get confused. Like this pigeon sitting on a silk floss tree branch. It was “pretty sure” it was a hawk.

Um, nope!

I can sort of see that with the first image, but the second one makes it blindingly obvious!

Here’s the kicker, though: Pigeons and doves are the same as far as biological classification. Some names might lean toward one or the other, like the mourning dove, but others, like the rock pigeon or rock dove seen here, can be called either.

Which means the AI was literally confusing hawks and doves!

No, those aren’t brush strokes. It’s just digital zoom.

After several days not being able to see any of the birds I could hear when I went for a walk on break from work, I saw a whole bunch of them hanging out on a lawn, eating seeds or bugs or whatever it is that these particular birds eat. Of course since I’d been walking to lunch, the only camera I had with me was my phone. No optical zoom, and I couldn’t get too close without spooking them. I figured what the heck, I’d give it a shot (or several) with the phone and see if I got something clear enough to post to iNaturalist.

I didn’t, as you can see, but it’s a great example of something I’ve found fascinating about digital zoom: The way it can make a photo look like it’s been painted with brush strokes rather than captured with pixels.

Personally, I’ve never understood why digital zoom is implemented as a resize instead of just cropping to a lower resolution. Even back when the full resolution on cameras was low, I’d rather have a clear 640×480 image than a blurry 1280×960. The only reason I even enabled digital zoom on an actual camera (rather than just cropping it later on my computer) was because it made a difference to the auto-focus, exposure, etc. choices the camera would make.

I suppose it’s marketing: They promised you however many megapixels, after all!

Man-Eating Birds, Algae-Powered Cars, and Googly Androids

  • Fossils linked to Maori legend of man-eating bird. # The giant Haast’s Eagle, which died out at least 500 years ago, was originally thought to have been a scavenger, but new analysis of fossils indicates that it was a lion-level predator…making it the probable basis for the Maori Te Hokioi legend.
  • Top Cyber Security Risks 2009. # Operating systems are becoming less and less of a problem, as attackers focus on client applications like Adobe Reader, QuickTime, and so forth.
  • Odd headline combo: “The algae-fueled Prius hits the road” and “Flesh-eating bacteria hit the beach.” (ZDNet newsletter) #
  • I like the sound of “Googly Android devices” #
  • Not sure what this song is, but what I can hear of it sounds like the chorus from Gethsemane – over and over and over. #
  • WTF? Allergy recall of “Fannie May Milk Chocolate & Almonds” due to undeclared almonds. How is that undeclared? #