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Archive for July 14th, 2013

I can’t believe the season is more than halfway over! Yet there is still so much to observe and enjoy here on Petit Manan island. Recently we have begun to see the first of the arctic migrants, such as dowitchers and sandpipers. We have even seen some wandering passerines like mockingbirds, mourning doves and a fledgling robin. It says something about islands life when seeing a robin is a big surprise!

Unfortunately, the terns have had a rather bad stretch of luck. The combination of bad weather, predation and (seemingly) lack of food have had a huge impact on chick numbers. Parts of the island have done better then others. However, the colony doing okay. We even have a few fledglings flying around!

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Most disconcerting, for us researchers, has been watching the great blacked-back gulls swooping in and picking off tern chicks. They are efficient predators. It is equal parts interesting and terrifying to see them hunting. Jill got a great photo of one taking an eider duckling, so you can see one in action below.

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This weekend we have been joined by Bangor high-school student Max. He’s been an excellent addition to the crew and has been a great help with our research. Here he is examining a tern egg this evening.

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It’s almost the end of the season here on Metinic, and we’ve just spotted our 145th species: a Bonaparte’s Gull. A significant part of why we’ve been able to spot so many different species out on this year is that in addition to seabirds, our island is the breeding ground for many birds found in forests and fields. Previous years’ crews have caught some of these birds and banded them, but we won’t be running a banding station out here this year. However, that doesn’t mean we don’t appreciate our feathery friends in the woods! Here are photos of some of our local songbirds looking their best. There are too many to cover in a single entry, so I’ve picked out some of our favorites. As usual, click the photos to see a

Savannah Sparrows are without a doubt our most common songbird. They are found mostly in the relatively open portions of the island and build grass nests directly on the ground. We wake up every morning to their buzzy songs – one Savannah Sparrow in particular has claimed the top of our outhouse for his favorite singing perch.

Savannah Sparrow - Photo by Zak

Savannah Sparrow – Photo by Zak

A cousin of the Savannah Sparrow, the Song Sparrow is also quite common on Metinic. They’re a bit drabber – no flashy yellow eyebrows here – but their song is much more melodious.  Song Sparrows also prefer shrubbier habitat than the Savannahs.

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Song Sparrow – Photo by Zak

Our first truly forest-dwelling species of the day: a Myrtle Warbler. These lovely little birds are lumped together with the Audubon’s Warbler as a single species, the Yellow-rumped Warbler. These brightly colored “butter butts” (as some birders like to call them) are found throughout the Metinic woods, particularly around the edges.

Myrtle Warbler - Photo by Zak

Myrtle Warbler – Photo by Zak

Metinic is home to two champion singers: the Winter Wren and the Gray Catbird. The Catbird knows the most songs of any bird on the island – although some might say he cheats, since he’s a mimic. Listening to a Catbird you can pick out any number of other bird songs from his enthusiastic solo concerts. You might also hear the occasional cat-like “meow” that gives this bird its name.

Gray Catbird - Photo by Zak

Gray Catbird – Photo by Zak

The Winter Wren, on the other hand, composes and performs his own music. There may only be one or two Winter Wrens on the island, but we can hear them all over the woods.

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Winter Wren – Photo by Zak

 

Our last and smallest (but not least!) bird for today is the fiery-headed Golden-crowned Kinglet. These tiny birds make their home in Maine year-round – they’re one of the smallest birds to spend the winter this far north.  They’re even smaller than Maine’s ubiquitous Black-capped Chickadees! We spotted their cousin, the Ruby-crowned Kinglet, earlier in the season as well, but only the Golden-crowned decided to stick around for the summer. Check out that bright orange and yellow crown the kinglets use to attract mates and scare away competition!

Golden-crowned Kinglet - Photo by Zak

Golden-crowned Kinglet – Photo by Zak

The season may be drawing to a close, but you haven’t heard the last from Metinic 2013!

-Amy

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