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Feral Cats Are An Invasive Species in North America (and elsewhere)

10,000 Birds

Read what you want about the origin of domestic cats; the genetic evidence is not properly sampled. When you throw the feral Cat in there, not only do they push out the indigenous wild carnivores, but they are hunting animals that are not quite adapted to avoiding them as well as they may be to avoiding other animals.

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A Near Conjunction

10,000 Birds

Cocoa Woodcreepers are the largest species of woodcreeper in T&T, and they have a proportionately massive bill. Can they ascertain how profitable a specific tree would be by some sampling method? Many friends and guests enjoyed seeing this particular bird soar, hunt, or even sit for hours in the valley. And so, we continued.

Trinidad 162
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Bird-Eating Fish

10,000 Birds

It has also found its way to Japan where it is considered to be an invasive species. Now and then individual catfish of various species hunt nearer the surface and larger catfish such as the American Channel Cat will take a duck or other water bird. The range of size of sampled catfish ranges from 0.9

Fish 202
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Acclimatisation Societies of New Zealand

10,000 Birds

There are the endemics, which are odd in their own way, and then there introduced species, which are so varied in their type and origin that you get the feeling you’ve arrived at the aftermath of a small zoo that escaped. What is surprising is quite how many species did end up here, and how economically unimportant they were.

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Highs and Lows from the Champions of the Flyway Bird Race in Eilat, Israel

10,000 Birds

Unlike other bird races where participants keep tight-lipped about bird species as mundane as a House Sparrow , this event gives a prize to the team that helps the most. But isn’t all of that data sharing counterproductive for a bird race where the team with the most species wins? This is a Masked Shrike.

Israel 171
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Feral Cats in American Cities

10,000 Birds

So I put together a “carnival” (of sorts) of Feral Cat Ordinances and Issues that samples current events across the US. … Matthew Anderson [of Audubon] said proponents of colonies are putting the interests of one invasive species — cats — over the hundreds of other native ones that are their prey.

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Birding in a Hellmouth

10,000 Birds

There were opportunities to go to far flung places like the islands of the Pacific or the coast of Canada or the Yorkshire Dales… Anyway, as I was obsessed by Africa at the time, I leapt at the opportunity to go to Namibia to collect samples of bat DNA for a biogeography project. A Bat Hawk hunting bats. And then, there it was.

Bats 154