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Archive for July 5th, 2017

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Aya reaching for 2 black guillemot chicks at a numbered burrow

We are currently in full swing of tern feeding studies and productivity checks for terns and black guillemots chicks! The majority of the tern chicks have hatched and are doing well. Our feeding studies reveal that the adult terns are continuing to bring in hake and sandlance as the primary food for the chicks. Both of these fish are very high in nutrients which means the chicks are getting nice and plump. Warmer water temperatures could change the fish composition for the worse so our fingers are crossed that it stays the way it is as the chicks approach fledging in the next few weeks.

 

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Arctic tern chick with a BBL band on the birds right leg and a field readable on its left. 

We have begun banding the older arctic tern chicks with field readable bands, so they can be easily identified as adults. This allows the Refuge and our partners to collect information on the importance of each island as a nesting location for specific individuals and to determine adult survival. We have been reading field readable bands on adults during resighting stints throughout the summer and will continue to identify as many birds as we can for the rest of the season.

We have also returned to the Leach’s storm petrel burrows that we flagged earlier in the season to determine if they are active by playing the call of a petrel on our phones and waiting for a response from an adult. So far, we have located 41 active burrows! Most of them are deep in the old stone walls that are scattered across the island and impossible to reach but we did find one that we were able to reach into a feel one adult with one egg. We will return in late July to check hatching success.

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Yesterday evening we had a spectacular view of the mainland fireworks and enjoyed some of our own sparklers for 4 of July celebrations!

Until next time,

Ravin

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