The Olive-sided Flycatcher was still at the location Andy described at 
2:20 PM. If you try for it, I recommend you bring a scope. When I was 
there it was not vocalizing and was at the top of a very tall and rather 
distant snag. A bonus on the trek down to the beaver dam area was a 
spotted thrush trifecta: Gray-cheeked Thrush, Swainson's Thrush, and 
Wood Thrush.

Nice find Andy and thanks for posting promptly! Ironically, I had 
visited the same area the last several mornings thinking it was a great 
place for an Olive-sided Flycatcher. But I opted for Little Bennett this 
morning; in migration timing can be everything! I'm going to have to 
talk to Paul about our agreement to limit the good birds to weekday 
mornings when I'm usually there. ;-)

Good birding!
Jim Moore
Rockville, Maryland
PLEASE REPORT YOUR BIRD SIGHTINGS to http://ebird.org/

On 5/15/2010 12:30 PM, Andy Martin wrote:
> On 5/15/2010 12:28 PM, Andy Martin wrote:
>> Bob Cantilli and I went down to abandoned beaver dam area after 
>> splitting up from Lydia, Linda, Pat and Paul. We found an Olive-sided 
>> Flycatcher on one of many dead snags. It even sang 3-4 times (1st 
>> time hearing one for me). Additional warblers for day's list would be 
>> a well seen Canada near gas line cut and 3 Ovenbird. Technically, I 
>> will call it an 8 flycatcher morning in the Watt's Branch Watershed 
>> with Acadian and Least FC, Eastern Kingbird and Eastern Phoebe in 
>> woods at corner of Fordham and Princeton; Olive-sided, Great-crested 
>> FC and pewee at old beaverdam area; and a Willow FC on the north side 
>> of W. Gude in the Storm water pond area at entrance to King Farm 
>> development.
>>
>> Andy Martin
>> Gaithersburg
>>
>>
>> On 5/15/2010 11:56 AM, pobrien776 wrote:
>>> Last night brought in a swarm of new birds, although I heard no 
>>> thrush flight at 10:45PM.  A small crowd of birders was blown in as 
>>> well: Lydia, Linda, Andy, Bob and Pat.  The birds:
>>>
>>> Yellow-billed Cuckoo
>>> Acadian Flycatcher (silent but green)
>>> Least Flycatcher (singing)
>>> Eastern Kingbird
>>> Yellow-throated Vireo
>>> Blue-headed Vireo
>>> Red-eyed Vireo 4
>>> Swainson's Thrush 3
>>> Northern Parula 4
>>> Yellow Warbler
>>> Chestnut-sided Warbler 3
>>> Magnolia Warbler 2
>>> Cape May Warbler 2
>>> Black-throated Blue Warbler 2
>>> Black-throated Green Warbler 2
>>> Blackburnian Warbler
>>> Bay-breasted Warbler 2
>>> Blackpoll Warbler 4
>>> Black-and-white Warbler
>>> American Redstart 5
>>> Common Yellowthroat
>>> Wilson's Warbler
>>> Scarlet Tanager 2
>>> Rose-breasted Grosbeak
>>> Baltimore Oriole
>>>
>>> Yesterday afternoon there was a Canada Warbler along the creek.  The 
>>> past week has been quite productive with 19 species of warblers.  
>>> There was no sign of yesterday's Mourning Warbler today.
>>>
>>> Paul O'Brien
>>> Rockville, Mont. Co., MD
>>>
>>
>