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Archive for June 24th, 2014

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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