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Birdie Magnetic Sense and Human Generated Electromagnetic Fields

10,000 Birds

In human terms, your ability to navigate your way from your home in Springfield, USA, to Bora Bora is the same ability that gets you from home to the grocery store and back, slightly adapted for a larger scale. There is a lot of electromagnetic noise created by humans, and there has been concern that this energy is harmful.

Humane 231
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Vagrancy in Birds: A Book Review

10,000 Birds

The book is richly illustrated with contributions from a group of birders/photographers who were fortunate to see and document many of the vagrants covered. There are many more factors than I imagined: compass errors, wind drift, overshooting, extreme weather and irruptions, natural dispersal, and human-driven vagrancy.

Birds 259
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Labor Day & Hummingbird Feeders

10,000 Birds

I know humans as a whole are a powerful species, but really, we do not have that much control over hummingbird migration ( Trumpeter Swans , maybe, but not hummingbirds). Some of the unusual species we’ve documented here in Minnesota in the fall include Magnificent Hummingbird (above), Costa’s Hummingbird and Green Violetear.

Arizona 248
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Licking Clay: the Macaws of Tambopata, Peru

10,000 Birds

Geophagy, the intentional consumption of soil by vertebrates, has long been documented in a number of bird and mammal species – including wide-spread use by humans – which consume soil to increase absorption of certain minerals not naturally occurring in the local diet. That’s right – birds eating clay. ararauna. Thanks for visiting!

Peru 255
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A long way from nowhere

10,000 Birds

This is what wikipedia has to say about Stoke’s Sea Snake: “Although aggressive with a venomous bite, there are no reported human fatalities attributed to Stokes’ seasnake.&# Broome Accommodation Mar 7th, 2011 at 7:50 pm A great post, thanks Clare, always great to see some of our local critters being documented.

2011 144
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Prima Facie vs. Ultima Facie Wrongness

Animal Ethics

He clearly thinks that it is wrong to cause animals to suffer unnecessarily, but he appears to be somewhat ambivalent about killing animals (provided the killing is carried out humanely). I suspect that underlying his thinking here is a common rationalization that many of my students initially embrace. Running time: 12 Minutes.