Opps - should have been "night recording over Gaithersburg, 4/10/08" not 
4/11

Andy Martin wrote:
> Weather and conditions permitted me to record for migrants last night 
> for the first time in about 3 weeks. I was very interested to see what 
> would be passing over since I have never been able to record much 
> during this part of April. In 2006, I did not really get things 
> figured out until early May and in April 2007, the weather was not 
> conducive for good recording between April 1 and the last part of the 
> month.
>
> It was a good night for Hermit Thrush movement. I would guesstimate 
> that more than 50 passed over between 12 AM and dawn. It was 
> reminiscent of good mid to late May night when Gray-cheeked/Swainson's 
> are coming through.
>
> Other birds detected that I can ID include sparrows (Song, Dark-eyed 
> Junco, Chipping, and a few Savannah, but no White-throated yet), a 
> Black-crowned Night-Heron, a Ring-billed Gull, and a couple dozen 
> American Robins.
>
> Also recorded another call I cannot identify and posted it at my 
> website: 
> http://nightmigrants.com/main/page_species_calls_mystery_call_2.html. 
> The background hiss is pretty bad but you can still hear the call 
> through it.
>
> Good birding,
>
> Andy Martin
> Gaithersburg
>
>