Thursday, June 5, 2014

May

This has not been our best year by far for spring migration monitoring. Cold, windy east winds prevented us opening on many days and the nice SW winds we hope for brought rain. We did manage to get out 16 days this month and had numerous highlights including a first for our station, which I will discuss later in this post.

One of the things I miss  living on Cape Cod is the song of thrushes. The forest would be alive with the melodious songs of Wood Thrushes and Veerys as I walked through the spring woodlands in central Massachusetts. We do have breeding Hermit Thrushes though but I just don't hear them on a regular basis. We did catch a Hermit on 5 May, we tend to band more in the fall, a SY (second year) bird of unknown sex.

Hermit Thrushes are a solitary bird, hence their name, preferring more open forests, often building their nest on the ground. They have a habit of flicking their wings and twitching their tail, especially during courtship.

White-throated Sparrows tend to be an early spring migrant, the last ones coming through at our site on 8 May. We banded our first one for the season on 3 May.

This brightly colored one had an odd molt of the primary coverts with the outer 2 being retained symetrically, so I thought it may be a case of suspended molt.

White-throats have what is called a pseudolimit in their tertials and greater coverts which make the inner feathers appear to be replaced, when actually it is the normal appearance of these feathers.

Prairie Warblers, Gray Catbirds, and Common Yellowthroats all arrived on 3 May and the island was alive with bird song. Typically it is the older birds that arrive first and this ASY (after second year) Gray Catbird posed nicely for the camera. We normally band between 700-1,000 catbirds a season and some days it seems like all we see in our nets are catbirds and

 Common Yellowthroats!

Many goldfinches were still molting into their breeding plumage like this SY male.

Ron and Gretchen were in a teaching mode explaining to one of our newer volunteers, Cooper, the art of banding a catbird!

On the 5th we recaptured a pretty male Prairie Warbler that we originally banded last year as an adult. Prairies love open sandy habitats and their population does well breeding on Wing Island.

Compare him to a SY female we captured on the 6th. The duller gray facial pattern on her face is less distinct as is the streaking on her sides.

We recaptured another Gray Catbird on the 4th and found it was not one of our bands but was originally banded as a HY (hatch year) bird in 2011 at Ninigret Wildlife Refuge, RI! He/She was looking good guys!

 We banded a bright SY year male Swamp Sparrow this day too. 

He had molted his upper two tertial feathers (secondaries 8 &9) and retained s7 on both sides.

 The best bird of the day on the 6th had to be this White-eyed Vireo! So pretty.

We banded a  female Ruby-crowned Kinglet, another early migrant, on the 8th

and our first of many (mostly in my yard) female Ruby-throated Hummingbird.

The middle of the month brought our first Blue Jay

a female Rufous-sided Towhee,

 a SY male Yellow Warbler,

and a beautifully plumaged male Myrtle (Yellow-rumped) Warbler.

The species below is often seen flying near the nets and many times perches right on the poles, but we hardly ever capture them , a  female Tree Swallow. They have been fighting with House Sparrows who have been trying to take over their nest boxes, but surprisingly the Tree Swallows have so far won out!



We had a nice variety of birds on the 21st, the pictures are all of males, including a Magnolia Warbler,

 Pine Warbler,

another Ruby-throated Hummingbird, 

and a Saltmarsh Sparrow, now a regular breeder in the salt marsh off Wing Island. 

Calm SW winds brought more migrants in on the 25th. It was nearing the end of spring migration so we were happy to have them. This American Redstart male will not reach adult plumage until after he molts this year.

This was only the 3rd spring-banded Chestnut-sided Warbler we have had, a SY male.



Also captured this day was one of four Magnolia Warblers, a SY female,

and two Northern Waterthrushes.

We banded a Canada Warbler on the 26th,

with more variety on the 29th, a SY female Yellow-shafted Flicker

and two species of vireos. The vireos are easily told by the hook at the end of their upper mandible. First the Red-eyed Vireo, aptly named,

and our second only spring-banded Philadelphia Vireo.

To round out the end of the month, we had a Traill's Flycatcher (probable Willow),

a SY female Cedar Waxwing,

but the BEST bird of the day, of the spring, of the year? was a female Blackburnian Warbler! While I've banded this species other places, I've been waiting 15 years for one to show up on Wing Island! This species is hard to capture because they love to be high in the treetops. OK, so it wasn't a beautiful ASY male but we were pleased none the least!

We ended the month having banded 38 species, not the greatest amount for May but somewhat respectable for our site. Many thanks to the following people for helping out this month, in order of donated hours:
Ronald Kielb, Corey Accardo, Gretchen Putonen, Cooper Crose, Jo-Anna Ghadban, Yianni Laskaris, Claire Revekant, Judith Bruce, Kaiti Titherington, Lauren Johnson, and Tanya- sorry Tanya never got your last name! 

The following is a list of birds seen, heard, or banded during the month of May:

Total birds:  517                                        Total species: 84
Total species netted birds: 38                     Birds/100 net-hours: 33

Common Loon
Double-crested Cormorant
Green Heron
Brant
Canada Goose
American Black Duck
Mallard
Turkey Vulture
Osprey
Northern Harrier
Red-tailed Hawk
Black-bellied Plover
Greater Yellowlegs
Willet
Sanderling
Dunlin
American Woodcock
Laughing Gull
Ring-billed Gull
Herring Gull
Great Black-backed Gull
Mourning Dove
Great Horned Owl
Ruby-throated Hummingbird 3 new
Belted Kingfisher
Red-bellied Woodpecker
Downy Woodpecker 1 recap; 1 unbanded
Hairy Woodpecker
Yellow-shafted Flicker 1 new
Acadian Flycatcher
Traill's Flycatcher 1 new
Eastern Phoebe
Great Crested Flycatcher
Eastern Kingbird
Tree Swallow 1 new
Barn Swallow
Blue Jay 4 new; 1 unbanded
American Crow
Fish Crow
Black-capped Chickadee 5 new; 33 recaps; 1 unbanded
Tufted Titmouse 3 new
White-breasted Nuthatch 1 recap
Carolina Wren 1 new
Ruby-crowned Kinglet 1 new
Eastern Bluebird
Hermit Thrush 1 new
American Robin
Gray Catbird 101 new; 54 recaps; 5 unbanded
Northern Mockingbird
Cedar Waxwing 1 new
European Starling
White-eyed Vireo 1 new
Philadelphia Vireo 1 new
Red-eyed Vireo 2 new
Northern Parula
Yellow Warbler 6 new
Chestnut-sided Warbler 1 new
Magnolia Warbler 5 new
Myrtle (Yellow-rumped) Warbler 1 new
Blackburnian Warbler 1 new
Pine Warbler 2 new; 1 recap
Prairie Warbler 10 new; 17 recaps
Black-and-white Warbler
American Redstart 2 new
Ovenbird
Northern Waterthrush
Common Yellowthroat 43 new; 78 recaps; 1 unbanded
Canada Warbler 1 new
Scarlet Tanager
Northern Cardinal 5 new; 2 recaps; 2 unbanded
Eastern Towhee 2 new; 1 recap; 1 unbanded
Chipping Sparrow
Field Sparrow
Saltmarsh Sparrow 1 new
Song Sparrow 11 new; 20 recaps; 1 unbanded
Swamp Sparrow 2 new
White-throated Sparrow 7 new
Red-winged Blackbird
Common Grackle
Brown-headed Cowbird 1 new
Baltimore Oriole
House Finch 1 new
American Goldfinch 36 new; 20 recaps
House Sparrow

Wednesday, May 7, 2014

April

We got a late start opening the banding station this year due to the cold weather and other circumstances. But I was finally able to get out on 21 April for a few hours. What a beautiful morning it was! The air was crisp with temps in the 40's but the sun sure felt good after our long winter. The receding high tide brought an aroma of the sea around the island and it smelled wonderful! I was delighted that the first bird of the spring season was an ASY (after second year) female Pine Warbler.

Pine Warblers do well on Cape Cod and some will remain through the winter. I had a pair coming in my yard for most of the winter to my suet and peanut butter mixture that I make. They prefer open pine forests and build their nests high in the trees.

Most of the goldfinch we capture this time of year are almost always in pairs and this day was no exception. Top photo is the female and the male is below. Their bills are still in the process of changing color, notice the brown tips. During breeding season their bills change to orange.


Both birds had a buffy edging to the carpal covert indicating SY (second year) birds, shown on the female.

The male underwent a prealternate molt of his inner greater coverts. The replaced inner coverts are much darker than the lighter colored outer greater covs. The arrow points to the molt limit.

I could hear flickers calling all over the island and finally captured one mid morning,an older adult male.

I honestly tried to get a good picture of a cardinal, it is so hard! But I just couldn't do it even going through all the painful pinches this lovely lady gave to me!


The next day brought birds in the Paridae family- chickadees

and titmice. Both of these birds love to hoard seeds by hiding them and in the bark of trees.

We also banded a male Eastern Towhee, a short distant migrant that winters in the southern part of the U.S. Female towhees didn't show up until a week later.

Song Sparrows can be found on Cape Cod all winter. We first banded this adult last October.

The favorite bird of the day was an Ovenbird! This was our earliest capture for this species since we first opened the banding station in 2000. 

The following is a list of birds seen, heard or banded during this week:

Total birds: 15                                                       Total species: 41
Total species of banded birds:  9                            Birds/100 net-hours: 14

Double-crested Cormorant
Canada Goose
American Black Duck
Mallard
Turkey Vulture
Osprey
Red-tailed Hawk
Greater Yellowlegs
Ring-billed Gull
Herring Gull
Great Black-backed Gull
Mourning Dove
Belted Kingfisher
Downy Woodpecker
Hairy Woodpecker
Yellow-shafted Flicker- 1 banded
Eastern Phoebe
Tree Swallow
Blue Jay
American Crow
Fish Crow
Black-capped Chickadee- 2 recaptured
Tufted Titmouse- 1 banded
Carolina Wren
American Robin
Gray Catbird
Pine Warbler- 1 banded
Ovenbird- 1 banded
Northern Cardinal- 3 banded, 1 recaptured
Eastern Towhee- 1 banded
Chipping Sparrow
Song Sparrow- 1 recaptured
Swamp Sparrow
White-throated Sparrow
Red-winged Blackbird
Eastern Meadowlark
Common Grackle
Brown-headed Cowbird
American Goldfinch
House Sparrow