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Posts Tagged ‘Nests’

The nesting season is ramping up on Metinic! We found our first tern egg on Wednesday and more nests have popped up every day since.

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Two egg Arctic Tern nest atop a boulder

 

Elsewhere on the island, we’ve found Common Eider, Herring Gull and Great Black-backed Gull nests. Some of the island’s birds are further along and already have chicks. At least one eider clutch has already hatched, with the three ducklings sticking close behind their mother as she cut through the waves. On our first trip to the southern end of the island, we came across half a dozen Killdeer chicks darting around the marsh while several Canada Goose goslings swam across a protected cove with their parents.

Killdeer chick

Killdeer chicks can run soon after they hatch. They also look like cotton balls on stilts.

Metinic is unusual among Refuge seabird islands in that it hosts a permanent terrestrial predator: garter snakes. Though generally small, these snakes could pose a threat to diminutive tern chicks, so we do our best to catch any near the colony. When caught, they often release a musky smell that fades from clothing after a few hours. These snakes then take a one way trip to the mainland, where they can get their fill of rodents, away from nesting seabirds.

garter snake

This snake and two others are now spending their days near Rockland.

Between stretches of fog and steering sheep away from the tern colony, we managed to find some time to continue our shorebird monitoring efforts. People up and down the Atlantic coast are curious about shorebird numbers and movement, so we do our best to keep an eye out for birds on the rocks and beaches. It’s also a good way to get our species list up. Two American Oystercatchers and a Purple Sandpiper helped to get our list up to 81 this week.

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Shorebirds can often be found in mixed-species flocks. This Purple Sandpiper was noticeably smaller than the Black-bellied Plovers and Ruddy Turnstones it was with.

Until next time!

-Mark

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This week Petit Manan welcomes the remainder of our crew- Shelby and Jimmy! And with them they brought nesting terns and beautiful weather!

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The view from the top of Petit Manan Light. We keep track of Alcid populations by counting them from the top of the Light twice a day!

As our second week on Petit Manan comes to a close, we have given up our reign of the island to the birds. No longer can we go to the outhouse in the middle of the night without hearing the territorial “ka-ka-ka” of Common Terns before they swoop towards our heads. Where once we could walk freely there are now hidden nests and incubating mothers that we must be careful not to disturb. And we couldn’t be more excited!

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One of four Common Eider nests we have found this week. Many more Eiders nest on neighboring Green Island.

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While searching for red-backed salamanders, I found this year’s first Savannah Sparrow’s nest hiding under a rotting log!

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And finally the one we’ve all been waiting for… the first tern egg of the season! Since then we have found three more nests, but without the safety in numbers of the whole colony nesting, these terns may have abandoned their egg so not to be targeted by Peregrine Falcons.

We hope to have another Egg-cellent week, as next we begin checking rock crevices and artificial burrows for Atlantic Puffin, Razorbill, and Black Guillemot eggs!

Until next time here is a bit of wisdom, “I value my garden more for being full of blackbirds than of cherries, and very frankly give them fruit for their songs.” -Joseph Addison

Best,

Morgan

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Petit Manan Seabird Researchers 2016 – Shelby, Jimmy, Jill, & Morgan

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We found our first confirmed nest on Ship Island on Monday evening.  The nest contained one egg at the time, but by Tuesday morning another egg was laid.

A Common Tern on Ship’s first confirmed nest in 2012

As  you can (hopefully) see, Terns don’t build much of a nest – it’s called a scrape for a reason! Their eggs are also very well camouflaged, so it can be difficult to spot them from up in a blind 10 feet in the air. Luckily, we were tipped off when this particular tern chose to stay put when the rest of the colony had taken off as part of a behavior known as dreading. After a few minutes of observation, the tern also stood up and changed position, revealing the egg.

In addition to being our first nest of the season, this nest is exciting for another reason:  one of the parents is a banded bird. We’ve seen several banded terns along the beach, but we haven’t been able to read the identifying numbers on the band. Now that we know where this particular bird is nesting, we’ve place a stake that can serve as a perch near the nest. With any luck, the banded tern will stand there long enough for us to read the numbers off the band.

Spot the tern egg…

We’ll be on the lookout for a third egg sometime today, as the usual clutch size

for a Common Tern is 2-3 eggs. These eggs will be incubated for a little over 3 weeks before chicks start to hatch.

Yesterday we also took a tour of the colony to look for more nests, and we were in luck: we found three m

ore. In a few weeks, we might have as many as 150, but four is pretty exciting right now!

Finally, I’ll share with you a photo of Ship’s fantastic new cabin:

Until next time!

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