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Birds Return after 99 Years

A species of sea bird that had disappeared from California’s Channel Islands, has begun to re-establish itself there. Researchers found about 125 of the California Common Murres on Prince Island, where they lived up to about 1912. About half of the recently re-discovered population appears to be incubating eggs or raising chicks.

“This is an exciting finding – certainly a historic one. The murres appear to have reestablished their former southern range, perhaps benefiting from present ocean conditions,” said Josh Adams, one of the researchers. (Source: USGS)

Egg harvesting and human disturbance of their habitat caused them to disappear. Prince Island is about 40 acres of rocky terrain, and today is not visited as often as it used to be by people. There are now 13 nesting seabirds on the small island. Murres breed on cliff sides, sea stacks and rocky island areas, which are difficult to reach for predators.

In Northern California, Common Murres are abundant, especially at the Farallon Islands and Castle Rock National Wildlife Refuge. At one point many years ago, an estimated 500,000 lived on the Farallons, but overharvesting of their eggs decreased the population to just several hundred. An estimated 12 million eggs were harvested between 1848 and 1900, due to demand created by the Gold Rush. They began to recover until the 1980s, after decades of much less egg collecting. Then they were hit by an oil spill and 10,000 were killed. Murres spend most of their time floating of the surface of ocean water and are very susceptible to oil pollution. The Farallons became a protected area so the murres were able to fully recover.

Common Murres have been recognized for what damage to their population means in environmental terms, “Over the past 30 years, the common murre (Uria aalge californica) has been recognized as a prominent indicator of marine conservation issues in California, Oregon, Washington, and British Columbia, especially regarding oil pollution, certain fisheries, and human disturbance.” (Source: Fish and Wildlife Service) They eat anchovies, sardines and juvenile rockfishes, and can swim to a depth of 500 – 600 feet.

This video provides a small sense of what it is like to visit just one of the islands:

Video of murres on a cliff:

Image Credit: USGS

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11:15PM PST on Nov 27, 2012

Great. Thanks.

6:45AM PDT on Oct 6, 2011

Great! Thanks for sharing.

12:57AM PDT on Sep 4, 2011


5:18AM PDT on Aug 23, 2011

Wow, finally some good animal news, thanks!

7:49AM PDT on Aug 21, 2011

great article, thanks :)

7:56PM PDT on Aug 17, 2011

Great news! Nice to see the return of the birds! thanks for sharing!

1:06AM PDT on Aug 17, 2011

wow thanks

11:31PM PDT on Aug 16, 2011

Wow,Great news!

10:33PM PDT on Aug 16, 2011

Really something to watch! That's a lot of depth for a bird to dive and it also has the advantage of flying that a penguin can't do!

3:54PM PDT on Aug 16, 2011

Info about the birds in the 2nd video~ Two researchers catching Common Murres (Uria aalge) on Gull Island, NL in July 2009. The murres are banded, weighed, a blood sample is taken, and then they are released.

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Interesting article. thank you for caring and sharing.

Thank you for sharing with us Elise!

thanks for interesting article


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