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Posts Tagged ‘PMI’

Common Tern on flagpole

Common Tern on flagpole

Another year on PMI! After two weeks of cold weather and high winds the terns have finally started to nest. Maybe not in the numbers that we are used to but it’s still early enough for more terns to arrive and settle in for the nesting season. The Alcids on PMI don’t seem to waste any time, Atlantic Puffins and Razorbills have already laid eggs at least 3 days ago and hundreds of Black Guillimots are still prospecting all over the island.

First Actic Tern egg

Actic Tern egg

Atlantic Puffin egg

Atlantic Puffin egg

Razorbill egg

Razorbill egg

Tern eggs are made to blend in with beach materials such as sand, pebbles, and seashells but nesting up and away from the beach can be risky as some tern eggs can stand out against the vegetation and island dirt. Puffin and Razorbill eggs don’t need to be camouflaged as most Alcids nest in deep, dark burrows away from the eyes of arial predators. Puffin eggs are all white and a little smaller than the Razorbill’s bigger, speckled egg.

Banded American Oystercatcher resighted  on Green Island

Banded American Oystercatcher resighted on Green Island

Last week while over on Green Island, which is ajacent to PMI and only accessible at low tide, we resighted an American Oystercatcher! We know they try to nest there every year, but haven’t yet been able to resight one yet. Now with the numbers on his bands we can find out who he is.

Memorial Day cookout on PMI

Memorial Day cookout on PMI

Thanks to MCINWR we have a grill this year! Until next time….

Wayne and Julia

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On June 19 and 20 the island crew, along with the invaluable help of Refuge staff and volunteers, completed the annual Gulf of Maine Seabird Working Group (GOMSWG) Census where over the course of two days we attempted to count every nest on the island belonging to a tern, gull, or eider. In order to do this, we all spread out in a line and called out nests to the person recording.

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Census crew working around the PMI light tower

During the census we came across a few oddities, such as Laughing Gull eggs in Eider nests and gull nests with double clutches.

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Laughing Gull egg nestled in the warm down of an Eider nest

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A double clutch of gull eggs – normally they have only 3. This could be a case of two females nesting together.

In addition to all these nests, we also found female Eider hens sitting quietly on their eggs in the vegetation hoping to go unnoticed. Usually, we leave these ladies to their incubating, but during census we catch them to read their bands or apply new bands if needed, helping us keep track of them in the future.

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Mother Eider sitting quietly on her nest

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Julia and Brittany as successful Eider-catchers!

After tallying up all the numbers and accounting for all the Common and Arctic Tern nests we marked with colored flags, we have 1203 tern nests, 670 of which are Commons while 533 are Arctics, 521 Laughing Gull nests, and 54 Common Eider nests! We do the puffin/guillemot/razorbill census a little differently, using the number of burrows we find throughout the season combined with how many we see on the island from day to day, so we will have those numbers later. Keep posted for more exciting updates about all those eggs.

– PMI Island Crew

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Snowy owl!?  Yes PMI had a snowy owl preying on Atlantic puffins and Black guillemots.  It was first spotted flying from Puffin Point and hunting all around the alcid colony. After several days and numerous attempts to discourage it from the island with pyrotechnics, we finally had to take action by setting out soft-coated leg-hold traps to try and capture the owl without injuring it and then relocating it. Now, placing the four traps that we had would be tricky as this particular owl didn’t perch or roost in any one spot twice. So I figure if it likes puffins so much the best way would be to dig out this old Puffin decoy I found stashed in our tool shed and put him to good use. We set up the traps and decoy just on the edge of the alcid colony at sunset just far enough so no alcids would fall into our traps.

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Puffy the decoy working hard on the job

The next morning “Puffy” the puffin decoy did his job! Two traps were set off and Puffy had his first battle talon scar on his chest! After that morning the Snowy owl was never seen on the island as of this posting which has been over 3 weeks! So now with this peculiar predator off the island our resident birds can get back to doing their thing, which is…..

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Guillemots mating

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Puffins mating in the water!

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Razorbills Mating on Puffin Point

Arctic Terns Mating

Arctic Terns Mating

Common Terns Mating

Common Terns Mating

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Even species that we don’t like to encourage have started mating now that the snowy owl is gone!

 

– Wayne

 

 

 

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