You know how there's always that last bit of liquid in the glass, just a few drops, that's resistant to lift-off no matter how many times you re-position the straw or how much suction force you apply? Well, Yellow-bellied Sapsuckers (Sphyrapicus varius) solved this physics problem over 10,000 years ago. Turns out, the solution to... Continue Reading →
Red-headed Stranger
If the stranger hoped to slip into Lafayette Square unnoticed he went about it all wrong. Sure, choosing a plain white top beneath an unadorned black waistcoat might sound like a reasonable way to avoid detection, especially when one is hanging out against a backdrop of grey-scale bark and shadow. I could tell at a... Continue Reading →
Border Battles
Last Sunday morning I unexpectedly found myself sitting ringside for a brief but furious brawl. Two male red-bellied woodpeckers (Melanerpes carolinus) were having a boundary dispute that started with an argument over some shrubbery then escalated into a full-on aerial assault. Colliding mid-air, they grasped one another by the feet and were so intent on... Continue Reading →