6 posts tagged with birds by filthy light thief.
Displaying 1 through 6 of 6.
Vampirism — piercing or cutting animal skin to suck or lap up blood — is known throughout the animal kingdom. Mosquitoes come to mind, plus ticks, mites, vampire bats, and the vampire finch of the Galapagos Islands. But … vampire moths? Wait, let's take a step back, did you say the vampire finch of the Galapagos Islands? Yes. They're a subspecies of the sharp-beaked ground finch that outnumber every other finch species on all of the islands combined. While they don't seem to bother the adult Boobies whose blood they drink, they may be fatal to chicks* and even crack open eggs. Right, what of those vampire moths? [more inside]
A team of researchers, including University of Edinburgh paleontologist Stephen Brusatte and Swarthmore College Associate Professor of Statistics Steve C. Wang, cataloging 853 skeletal characteristics in 150 dinosaurs and analyzing the rate at which these characters change, and they found that "there was no grand jump between nonbirds and birds in morphospace." In other words, birds didn't suddenly come into existence, but evolved, bit by bit, or characteristic by characteristic. But when birds were finally a thing, they went crazy. "Once it came together fully, it unlocked great evolutionary potential that allowed birds to evolve at a super-charged rate."
From 1851 to 1858, Henry David Thoreau noted a number of natural occurrences in detail, including the first flowering dates for over 500 species of wildflowers in Concord. Additionally, Alfred Hosmer, a botanist in the same area, had recorded the flowering dates of over 600 species of wild plants in 1878 and from 1888 to 1902. With that data, Richard Primack, a biology professor at Boston University, and fellow researcher Abraham Miller-Rushing spent years aligning old plant names with current names to study the change flowering patterns from the recorded past to present. Their phenological study concluded that plants in Concord, on average, are now flowering 10 days earlier than they were in Thoreau's time (full article for the journal BioScience). [more inside]
Western Digs is a source for "dispatches from the American ancient West." Posts are sorted into three main categories: Dinosaurs & Ancient Life (Paleontology, split into Dinosars, The Ice Age, Birds and All Fossils), Prehistoric Americans (Archaeology, split into Ancient Southwest and The Mississippians [Cahokia]), and Modern Artifacts (Historic Archaeology, including the subset The 20th Century). If you're not sure where to start reading, here are Western Digs’ Top 5 Paleontology Stories of 2013 and Western Digs’ Top 5 Archaeology Stories of 2013.
Megapode, Greek for "large foot," refers to refers to 12 species of Australasian chickenlike birds (order Galliformes), which have small heads compared to their bodies, and large feet. They are also known as Mound Builders, or Incubator Birds, as they bury their eggs in some warm material, most commonly fermenting or decomposing plant matter. But on Sulawesi island in Indonesia, Maleos bury their eggs in sun-baked or volcanically heated sands, then depart. The young hatch from their large eggs (5 times the size of chicken eggs), then dig out of their sandy incubators and walk or fly away. If you can't make it to Indonesia to see the birds in person, you can also visit the Wildlife Conservation Society's Bronx Zoo to see their 9 Maleos, or check out their video about Maleos and the zoo's breeding program. [more inside]
Bowerbirds, a family of 20 species in eight genera, are a fascinating bunch of birds who range from New Guinea and Australia. Some are flashy, others drab, but all are named for the "bowers" (avenues, huts, or towers of sticks; source) that the males craft and decorate to attract a mate. There are regional styles (PDF) in the design of the bowers, and the male Greater Bowerbirds even employ optical illusions. Some, like the Vogelkop Bowerbird, add mimicry vocal to their repertoire of courting methods. Add accidental cultivation to the list of fascinating features of the bowerbirds. [more inside]