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Robson Bight, Springer has returned

Thank you Paul and Helena for sending this update.

November 14 2007

Hello everyone,

We have good Springer news... Springer has returned to Johnstone Strait, and she looks great!

Almost 3 anxious months have passed since the tragic oil spill in Robson Bight, which exposed fully 25% of the Northern resident orca community to toxic diesel fumes. Springerís family, the A4 pod, was one of the groups which spent several hours amidst a dense diesel fog in Robson Bight the night after the incident. During the 2 weeks that followed, none of the A4s, including Springer, displayed obvious symptoms. But just the same, we were worried about them, and when they left we wondered if we would see all of them again.

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Captive Breeding Program for Northern Spotted Owl

Conservation & PreservationA habitat for one of Canada's most endangered birds is taking shape in Langley, British Columbia.

A few months from now, owls will hunt prey among tree trunks and saplings in a forested region near Fort Langley.

They will be one of the rarest birds of prey in the world, the Northern Spotted Owl.
The birds won't be living in the wild, however. They'll be enclosed in a large, brand new aviary being built on the grounds of the Mountain View Conservation Centre.

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Chehalis River Estuary Above Ground Eagle Cam

Wildlife NewsIntallation Progress:

Installation of the above-ground eagle cams on the Chehalis Estuary will be delayed until after the Fraser Valley Bald Eagle Festival due to continued high water levels.
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Oil Spill ~ Robson Bight

Planet Earth

Environmental groups have cancelled plans to self fiance the underwater investigation of the oil spill in Robson Bight.On Aug. 20 a barge filled with logging equipment spilled 19,000 litres of mostly diesel fuel into this ecological reserve near Telegraph Cove.

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HANCOCK FORUM NEWSLETTER - Issue No 5 ~ November 07 , 2007

NewslettersHANCOCK FORUM NEWSLETTER

Issue No 5 ~ November 07 , 2007
Editors: Cobbler39/Blue Heaven
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image... FEATURE STORY


DO EAGLES HAVE TONSILS? .....AND OTHER QUESTIONS

You may remember Wendy asking several times, "Do eagles have tonsils?" (She knew the answer.)

Tonsils are organs of the lymphatic system and act as part of the immune system to help protect against infection. Our tonsils can be seen on either side of the throat when we open wide and say "Ahhh" ~
like Skye did on June 10th ...image

The eagles 'opened wide' numerous times this past season but we couldn't see if they had tonsils there!

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Mom, April 28, 2007....... Baby Skye in May ....... Skye, June 10,2007

We asked our resource people; AJL, whose expertise and helpfulness is well-known on the forum, and Carla Lenihan, Wildlife Biologist and Executive Director at Hancock Wildlife Foundation. They replied that eagles do not have tonsils in the same way that we, or other mammals do, in our throats. Tonsils are basically lymphatic tissue and because the eagle eats carrion, its digestive tract is lined with plenty of lymphatic tissue to prevent infection.

We sent the question to David Hancock who forwarded it to Dr. David M. Bird at McGill University. Dr. Bird wrote back that, while birds do not have tonsils like we do, they do have cecal tonsils which are found in their ceca which are dead-ending structures coming off the small intestine at the junction of the large intestine. They produce antibodies and play some sort of sentinel role for the lymphoid system.

So..... do eagles have tonsils?

Eagle feet, eagle claws, or eagle talons?

An eagle's feet are very unique. We watched with amusement when Skye stretched a foot that seemed too big for her in front of the close-up camera; we saw Mom's huge feet and talons leave the nest above the tiny, bobbing head of the eaglet; and we saw Skye's talons develop into the powerful weapons they would one day become.

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Animals also have feet with claws, including tiny birds. But the eagle's claws are extremely strong and sharp because birds of prey also use their feet for killing. They need those two-inch long razor sharp claws to grasp a slippery strong fish with scales.

Many other animals have sharp claws, so why do we call the eagle's claws talons? The difference is that an eagle's feet are designed to carry things. The foot has four toes, strong enough to hold up to four pounds when flying through the air. Three toes point forward and one backwards. The bottoms of their feet are covered with rough, scaly knobs called "spicules" that give them a better grip. The powerful muscles and tendons hold the feet firmly shut when carrying heavy prey or perching on a branch.

It is amazing that the eagle can control those enormous and lethal feet when landing on the nest, when delicately straddling incubating eggs, and so carefully avoiding stepping on a tiny eaglet.
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