Icelandic Ravens In Danger Due To Extensive Hunting

Icelandic Ravens In Danger Due To Extensive Hunting


Icelandic Ravens In Danger Due To Extensive Hunting

Icelandic Ravens In Danger Due To Extensive Hunting

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Published September 7, 2017

Around 3,000 ravens are hunted each year, which has lead to a serious decline in their numbers, reports RÚV.

Ravens are hunted because of the damage they can cause to crops and other bird species due to them feeding on eggs. Unlike many other bird species, however, there is no designated hunting season for Ravens and they can, therefore, be hunted freely all year round.

Kristinn Haukur Skarphéðinsson, a bird expert from the Environment Agency of Iceland said that actions need to be taken to preserve the species.

Needs to be protected

In the late ‘80s there were around 13,000 ravens in the country, but since then the numbers have rapidly dwindled.

“The ravens are threatened because their numbers have declined steadily for decades, and if nothing is done then there will be very few left in the future,” said Kristinn. “They are on the vulnerable list and will probably remain so.”

He claimed that the agency will meet with the Björt Ólafsdóttir, the Minister for the Environment and Natural Resources later in the month to reiterate its view that Icelandic ravens should be protected, if they are to survive as a species.

The mythical bird

Throughout history the raven has been considered the holiest and most revered bird in all of the Nordic countries. Óðinn had two, some of the first settlers used them to find shore and sometimes they were even seen as gods.

But who cares about history and cool animals, right?


Ravens Are Ridiculously Smart, Seem To Be Able To Plan For The Future

The new “Planet of the Apes” movie has people imagining what an ape-ruled world with human underlings would really look like, but maybe ravens are the animals we should be keeping an eye on.

The dazzling intelligence of corvids — the family that includes ravens and crows — is well-documented. Studies have suggested that corvids rival chimps in cognitive self-control. Ravens can imagine being spied on, and crows display puzzle-solving skills comparable to those of apes and human children.

Research published Friday in the journal Science adds even more evidence to the pile. Scientists from Sweden’s Lund University found that ravens appear to have the ability to plan for the future.

Cognitive zoologist Mathias Osvath and graduate student Can Kabadayi presented five ravens with a series of puzzles. First, they taught the birds how to get a food treat out of a puzzle box using a specific tool. The ravens also got the opportunity to interact with the puzzle box with no tools, and with objects that would not open it.

They they presented the birds ― with no puzzle box visible ― an array of options, including the functional tool and a bunch of useless “distractor” objects. The puzzle box was installed 15 minutes later. The birds successfully selected the tool and used it to open the box 86 percent of the time, excluding one particularly resourceful female who figured out a way to open the box all by herself, with no tool.

Did you think ravens weren’t smart? Nevermore. 

A similar experiment involved teaching the ravens to use a token to “barter” with humans for a food reward. (Basically, the ravens gave the token to a person, and the person gave them a treat in return.) Again, the ravens were largely able to correctly select the token for future use when presented with a range of objects.

The ravens also demonstrated self-control skills: They were willing to forgo a reward in lieu of a better reward they had been trained to know would come 15 minutes later. Researchers presented the birds with a range of objects that included distractor objects, the useful tool or token, and a food treat. The treat was “less valuable” ― it’s not specified what this means, but presumably it was smaller and/or a food that ravens like less ― than the treat that ravens could later obtain by using the tool or token. (In control versions where no tool or token was available, the birds picked the immediate treat 100 percent of the time.)

Kabadayi told NPR that the birds — like humans — were less likely to delay gratification when they knew it would take longer to get a larger reward.

“We basically found that the further ahead in the future a reward for ravens, the less value it gets,” he said.

The researchers note in their paper that the ravens’ performance bore “conspicuous similarities” to the abilities of great apes in similar tasks.

One major reason all of this is so interesting ― besides the sheer awesomeness of how smart ravens are ― is that it suggests these complex cognitive abilities would have to have evolved independently of the abilities of mammals like apes and humans. That’s because apes and ravens have not shared a common ancestor for around 320 million years, according to NPR.

For that reason, the scientists wrote that their research “opens up avenues for investigation into the evolutionary principles of cognition and shows what the brains of some birds are capable of.”

Markus Boeckle, a psychology professor at the University of Cambridge unaffiliated with the study, expressed excitement over the research in an interview with Scientific American, but had some reservations. For instance, he noted that the small sample size of five hand-raised ravens might not be representative of the species as a whole.

For all we know, he told the site, those birds could be “the Albert Einsteins [of] the raven world.”