Posted on December 11, 2016

On Sunday morning, with temperatures hovering around 20, I had a turnout of 29 people for a two hour walk exploring the ponds and landscape of the upper Muddy River. We started on the Boston side of Leverett Pond where I expected to find a collection of Wood Ducks along the islands there. As we approached the pond edge a Great Blue Heron flew off:

Great Blue Heron taking flight.

But no Wood Ducks! The water was totally frozen at the southern end of this long and skinny pond. When I scouted for the walk a few days earlier it was open and there were 30 or more Wood Ducks there. We continued to circle the pond and as we got to the open northern end there was a mass of waterfowl, and among them were woodies. When we got closer though they all took flight! Fortunately they circled back and although they landed some distance away we counted at least 43 Wood Ducks, and scoped some, so everyone got good looks. A spectacular bird:

Female (front) and male Wood Ducks

Leverett Pond has become a regular hotspot for these secretive ducks. About five years ago birders from several local conservancy groups erected nest boxes on two of the ponds on the Necklace. They were ignored for several years, but in spring 2014 a female and chicks were noticed on the pond:

Female Wood Duck, right, and four of her 6 ducklings.

This was the highlight bird for the trip as several in the group had never seen them before. We also spotted six Ring-necked Ducks:

Two striking male Ring-necked Ducks and a female, all showing the classic bill pattern. Why aren’t they called Rind-billed Ducks?

We moved on to Jamaica Pond, passing Willow, and Ward’s Ponds on the way. Ice was prominent on these smaller ponds, and there were no waterfowl.

Jamaica Pond had some ice but was mostly open water. There was a huge flotilla of Hooded Mergansers moving about and feeding; I estimated more than 50. Handsome creatures:

Hooded Merganser, male

The female of this species is much more subtle, but equally lovely:

Female Hooded Merganser, devouring a fish.

Farther out was a large raft of Ruddy Ducks. Most were sleeping and they were back-lit so the primary ID was by their nickname, “stiff-tails”:

Ruddy Ducks, showing their diagnostic silhouette.

When one is lucky enough to see them up close they are worthy of admiration:

Ruddy Ducks. The one at top center is beginning to show some of the blue color in his bill which appears during breeding. The two in the lower part of that frame are females, lacking the white cheek of the male.

American Coots, more closely related to rails than ducks, are usually well represented on Jamaica Pond but until last week there was only one, hanging out with the Mallards. Today there were 5;

American Coots are roly-poly birds with white bills unlike ducks. Notice also their odd partially-webbed feet.

As winter persists Jamaica Pond often ices over; in the process coots and other winter waterfowl get squeezed into receding open water pools.

25 or more American Coots on a mostly iced over pond.

When the ponds freeze over waterfowl must move to open waters; Leverett Pond, the Riverway or the Basins in the Fens often stay partially clear all winter. But some may never make it to safety:

A female Hooded Merganser being captured and drowned by a Great Black-backed Gull on Jamaica Pond in December 2008.

I watched the grisly demise of the female hoodie that was confined-along with many others- in a small area of open water. Great Black-backed Gulls are the world’s largest gull, and are described in the iBird PRO app as “pugnacious, predatory and opportunistic”. They are never numerous on the Emerald Necklace ponds, but in freezing weather they are a menace to waterfowl of all sorts.

The upper ponds of the Emerald Necklace have hosted more than 30 species of waterfowl in recent years. To see photos of some of these uncommon ducks, check out these previous posts- Jamaica Pond Ducks and Rare Birds & Odd Ducks at Jamaica Pond .

Here are eBird checklists from Sunday’s walk:

Olmsted Park–Leverett Pond, Suffolk, Massachusetts, US

Dec 11, 2016 9:00 AM – 9:45 AM

Protocol: Traveling

0.8 mile(s)

Comments: sunny and cold, 20 degrees

15 species

  • Wood Duck 43
  • American Black Duck 3
  • Mallard 150
  • Ring-necked Duck 6
  • Great Blue Heron 1
  • Ring-billed Gull 5
  • Rock Pigeon (Feral Pigeon) 6
  • Mourning Dove 5
  • Downy Woodpecker 1
  • Blue Jay 2
  • Black-capped Chickadee 5
  • White-breasted Nuthatch 1
  • Dark-eyed Junco 4
  • Northern Cardinal 1
  • House Sparrow 25

View this checklist online at

Jamaica Pond, Suffolk, Massachusetts, US

Dec 11, 2016 10:15 AM – 11:00 AM

Protocol: Traveling

0.5 mile(s)

Comments: sunny and cold, 20 degrees

11 species

  • Canada Goose 35
  • Mallard 40
  • Hooded Merganser 50
  • Ruddy Duck 45
  • American Coot 5
  • Ring-billed Gull 20
  • Herring Gull 75
  • Blue Jay 1
  • Black-capped Chickadee 2
  • European Starling 6
  • House Sparrow 12
  • View this checklist online at

This report was generated automatically by eBird v3 (

Ill be doing a first of year walk in the Arnold arboretum on Sunday January 8 starting at 9:00AM from the front gate. hope to see you there.

Happy Holidays and good birding!

Posted in Birds