Monthly Archives: June 2013

Common Terns, June 23, 2013

Common Terns

Common Terns (click to see the larger version).

Two adult Common Terns were inside the protected area at Montrose Beach this morning. Both birds flew off to the west after a few minutes and were not seen again. This is a most unusual record. Other birds seen or heard at Montrose this a.m. include a southbound Great Egret, 2 Eastern Wood-Pewees, and a buzzing Dickcissel.

Grasshopper Sparrow and Great Crested Flycatcher, June 20, 2013

I saw a Grasshopper Sparrow near the water feature early this morning. The bird flew towards the meadow and I never saw it again. A little late and a little unexpected I’d say. I also heard and saw a Great Crested Flycatcher.

On a side note, some of you may have noticed that the eastern portion (specifically, the eastern panne) of Montrose Dunes has been cordoned off with yellow rope. This was done to protect the vegetation from trampling and disturbance. I know the dunes are popular with birders seeking Nelson’s Sparrows and other birds but the disturbance to this area has become so extreme that cordoning it off became necessary. Please don’t enter this area if you bird the dunes and stay on the footpaths to minimize damage to the vegetation.

Sheboygan, Wisconsin Little Gulls

Little Gull

First year Little Gull by Amar Ayyash (click to see the larger version).

Karen Mansfield and I had at least 3 first year Little Gulls along the Sheboygan, Wisconsin lakefront on Saturday, June 1. The Little Gulls were associating with Bonaparte’s Gulls at North Point Park. Sheboygan is perhaps the most reliable place to see Little Gulls in the western Great Lakes region.

In addition to the Little and Bonaparte’s Gulls we also had 20 or so Forster’s Terns, a couple Common Terns, and a first year Franklin’s Gull.

Confusing Sterna Terns

Forster's Terns

Forster’s Terns. Photographs by Mike Miller (click to see the larger version).

Mike Miller photographed these Sterna terns on Montrose Beach in late May. Both birds are Forster’s Terns and I think both are in their third calendar year, that is, they were born in 2011. The top bird has white underparts, a broad white area between the lower edge of the dark cap and bill, and a tail that extends past the tips of the folded primaries. These are Forster’s field marks. The bill also looks stout and the legs look long to me.

The second bird has a gray tail and a white outer web to the outer pair of tail feathers. These are also Forster’s field marks. Except for the dark outer 5 or 6 primaries both birds look like adults, but adult Forster’s Terns in late May should still have silvery white primaries, so that’s why I think they are in their third calendar year. Immature terns molt their primaries earlier than adults and when tern primaries become worn they darken. The dark primaries of these birds are really the only clue that they aren’t fully mature.

June 11, 2013

Well, spring migration isn’t over just yet, but it’s really close. There might be one last pulse of migrants with the south winds and warmer weather forecast for Tuesday and Wednesday. This morning I had singing Wilson’s and Magnolia Warblers, a female American Redstart, and a Great Crested Flycatcher. I also heard what were probably Alder and Willow Flycatchers calling. I usually keep birding Montrose for the first 10 or 15 days in June for late migrants and stragglers. Who knows, maybe a Fork-tailed Flycatcher or Brown-chested Martin will show up.