Sunday Nov. 1, 2009

Volume 8 Issue 11


Winter Migration

Through October new migrant coots arrive early in the morning. They are hungry and thirsty after flying all night, but mostly are shy and wary, wondering how they may survive in the marina. Newcomers are easily recognized while they are holding their heads up and keeping their eyes wide open looking around.

Another new migrant coot arrived in the morning darkness of October 5. Beaky paddled around his territory with her that morning. Other coots were reported as sighted in the marina near the end of September, and twenty to thirty coots are in the Sweetwater estuary.

The new female was here for one day, although not so wild as the previous one in September, was gone the next day.

She was able to eat a cracker, but was probably horrified of the conditions here and couldn't cope with monsters handing out free food.

A mated pair of coots arrived on October 9. Like the others, they are gone the next day.

On October 11 two more female coots arrived early in the morning. One was the wild female shown at the right. She is wild and wary and can only be fed with difficulty.

By the middle of the month, she is well trained and establishes a leadership position among the new arrivals.

At the end of October it is clear that she has exceptional abilities.

The other coot was Monday, Beaky's female companion from last winter. She recognizes me, and climbs up the steps to drink water from the cup. She takes food from my hand but is a bit nervous.

Comparison with photographs from last year show similar shapes in her upper mandible and frontal shield. Her tarsal color is consistent with her age. The similarity of the feather pattern around the posterior end of the exposed upper mandible is distinctive. The way her undertail white coverts have been exposed is similar. It can't be anyone else.

Beaky chases Monday (left) away and the new wild female helps him. Beaky and the wild female spend much of the morning together. Both females are still here the next day.

The new female sees Monday as the main obstacle between her and the food. She chases Monday away from the boat. She also has remarkable athletic ability and tenacity. She is very intelligent or perhaps cunning. She follows me around the docks and anticipates where I am going, instead of getting lost between boats as Beaky does.

Fortunately, she immediately understands what I want and stays away from the boat. She learns that she will only be fed at the far end of the dock, or on the other side away from Beaky's territory.

Beaky is slow to accept Monday at his feeding dish and will bite her if he can. Monday persists in eating at the boat in spite of his pecking her since she has no other choice. As was the case last winter, she is mostly fed by hand.

The gulls still threaten the coots at the boat, and force them to scatter in all directions. The spotted bass adds to their terror, appearing to eat lost crumbs, but seems the least of their problems. The bass also eats the super worms.

Coots change over the years, and the difference in a bird's personality between first and second years is remarkable. The females tend to worry more and become more nervous. Two years ago when Missy returned on her second winter she was very nervous and her appearance suffered. It seemed like she was having a nervous breakdown from Beaky's demands, and she stopped bathing and preening for two weeks.

At the end of October, Beaky and Monday seem to have worked out their relationship so both can get some head nibbling and bowing. They may have little choice as the pressure from new arrivals in the marina puts stress on maintaining their territory. They need each other's help. Monday is able to bathe and preen and maintain her excellent appearance. Her most impressive personality trait was the ability to meet and deal with any new problem as if it were routine. Also, she is the only coot that walks down steps.

Above, Monday takes up the cudgels to staunch the relentless onslaught of enemies. Below, both Beaky and Monday work together as a team, first exchanging clicks, squawks and croaks to coordinate their efforts. Finally, they join to execute their plans.


The Seagull

This juvenile gull has been seen attacking the coots and has become a serious threat. All the gulls seem unusually aggressive and destructive now.

The gulls seem organized and the only solution is to make sure they don't get any food. Often this means hand-to-beak feeding, as the coots may be too afraid to put their heads down to eat from a dish.

This gull has somehow gotten a mackerel, and is eviscerating it and eating it.

Some of the gulls use their powerful beaks to strip mussel shells off the docks and pilings. They open them on the concrete surface.

One of the mature gulls attacked this Clarks grebe on October 29.


The Pied Billed Grebe

The grebe with the piebald beak has been here since early September, and is the only pied-billed grebe so far. This bird is a "floater" and usually sleeps in the water between docks F and G.

This picture (right) shows the bird's right leg being stretched, revealing the foot.

At the end of October the bird's bill is losing its piebald colors.


Other Birds

Military and commercial aircraft fly over the marina on their approach to North Island runway 27.


Scaups and Scoters

The first flocks of these winter resident birds arrived October 25. About seventy total birds of both species combined were seen on the bay. None appear in the marina yacht basin yet.


Climbers

These two wild coots were the first birds able to climb the riprap this winter. They ascended to the sidewalk on October 26 in spite of the loss of ice plant and treatment with herbicide.

This is the wild female (right) that arrived with Monday on October 11. She has remarkable abilities of perception and strength. In one case, she was able to stop the gull from taking her cracker by swimming under the dock. She surfaced on the other side to eat in peace, invisible to the gull.


Corn

Monday likes to eat wet corn straight from the can. Beaky also joins her. At one time years ago, Beaky liked corn more than anything, but his taste changes over the years.

In fact, most wild coots that stay here for the winter won't eat corn. When placed in their beaks, they just drop it and continue looking up at you. However, some of the more liberal-minded birds like Beaky and Monday may give it a try and like it.


Stupid Sign of the Month

Want to go for a swim? Jump right in.


October Movies

Beaky and Monday are slow to join as mates this year. Click on this link to see Beaky_Monday.wmv, and how Beaky sets out to nibble Monday's head. .

Monday seems afraid to nibble Beaky at first, but after a week they both are grooming each other.

By the end of October they are working together as a coordinated team to protect their territory from intruders.

It is important to a bird's health to be able to bathe and preen. Click on this link to see mondaybath.wmv, and how Monday is taking a bath.

Blackbirds squawk to be fed and then sing. Click on this link to see song.wmv, and enjoy the beautiful song of the Brewers blackbird.


Links of the Month

(I don't make this stuff up department)

The technology behind Google's great results Why Google's patented PigeonRank™ relies primarily on the superior trainability of the domestic pigeon.

Time to Eat the Dog? Just Think About It, Say 'Sustainable Living' Authors How to get the most from your pets.

The ancient, flightless Kakapo is the world's rarest and strangest parrot It is the only flightless and nocturnal parrot

Bird Anatomy Diagram Correct names for bird parts.

The Importance of Waterfowl as the one most important measure of the quality of a university.

Under her wing Terry Whatley was sitting at Village Pond Park in 1997 when she spotted the injured goose...

OREGON LOCAL NEWS Foam from ocean algae bloom killing thousands of birds

Some Remarks on the Facial Expression of Birds People can learn to read a wild bird's facial expression

Book About Gay Penguins Is Most Banned of the Year the true story of two male penguins raising a chick in the Central Park Zoo

Texas wind farm pioneers radar technology to protect migrating birds US wind farms kill about 7,000 birds a year

State narrows areas off coast for test wind turbines developers may soon be allowed to install and test offshore wind turbines.

Crows and Ravens and how to tell one from the other.

Marine protection plan will curtail S.D. catches Long feared Marine Life Protection Areas will slash profits of San Diego's passenger and commercial fishing fleet by an estimated 40 percent.

Caw of the Wild Practical experience with wild birds and rehab agencies

La.'s endangered brown pelicans make a recovery Louisiana’s state bird is making a comeback

Attack on shark nets Killing whales in Australia

Crow Rescue Care and Sanctuary for Corvids

Physics? It's All the Same to Birds and Babies rooks comprehend basic principles of physics

Maurice Sendak tells parents worried by Wild Things to 'go to hell' "...there was every possibility that they would eat me, or my sister or my brother. "

Dead beluga was pregnant, scientist says Pathologists are studying tissue samples from a dead beluga whale

BATTLE AT SEA Rocky Point is at the center of a tug of war between environmental and fishing interests.

Albatross snags scraps from killer whale Birds may rely top predator to bring hard-to-reach fish food to the surface

A picture of a thrush wing showing covert feathers

Largest Turtle-Linked Salmonella Outbreak Sickens 107 People, Mostly Kids

Famed Fossil Loses Avian Perch Paleontologists Determine the 150-Million-Year-Old Archaeopteryx Might Not Have Been Ancestor to Today's Finches and Doves

One-third of US birds are endangered, says conservation report Energy production deriving from wind, ethanol and mountain-top coal mining contributing to steep drops in bird populations

U.S. May End Up Discarding Unused H1N1 Vaccine The U.S. government may end up throwing away unused doses of swine flu vaccine the director of the U.S. Centers for Disease Control and Prevention said


Big Picture:

Click on the image to view it full size. Use your browser's Back button to return.

Monday, the remarkably tame and patient female is back as Beaky's winter companion for a second year.


OutTakes

(Use your mouse cursor to read the titles)



  "There was the clump of reeds, and there at the base of them, among them, the raised platform of the
nest.  Was it deserted?  Or not?  Tom peered through the twilight.  No.  It was as if the centre of the 
nest was capped with a black dome, and on the dome he had just seen the white splash of a coot's 
forehead.  And what was that other shadow working along close under the bank?  It was enough.  
Tom did not want to frighten them again.  He paddled quietly on.  One thing was all right, anyhow.  
The coots of No. 7 were at home once more. "
Arthur Ransome "Coot Club"

Index:

  1. Home
  2. Background
  3. Coot Food
  4. Recipe for Coot Pudding
  5. Coot Misinformation
  6. Bibliography of Research
  7. Coot Calls and Movies
  8. Historical Summary
  9. Links to Important Sites
  10. Opinion


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