My first guess would be juncos since there are so many around right now. Is
it an even trill?  High? mid-range?  Fast , slow or medium speed?

Look for characteristic gray tops, white bottoms and white tail feathers on
either side of a gray tail. Then you likely have a Junco. (Dark-eyed Junco)
See and hear here:

https://www.allaboutbirds.org/guide/Dark-eyed_Junco/id



Cynthia Crawford

*Creature Kinships and Natural Affinities*
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On Mon, Apr 24, 2017 at 1:16 PM, Marianne Blake <[log in to unmask]>
wrote:

> Can anyone tell me what bird makes a trilling sound?  I have one (or maybe
> 2) that I hear near my back yard.  Back yard backs up to more than 200
> acres of undeveloped land.
>
> Marianne Blake in Windsor
>
>
>
> *From:* Upper Valley Birders [mailto:[log in to unmask]] *On
> Behalf Of *Bill Shepard
> *Sent:* Monday, April 24, 2017 9:27 AM
> *To:* [log in to unmask]
> *Subject:* [UVB] "drink your tea"
>
>
>
> Or “cheewink” .   These are the vocalizations of the Eastern Towhee.
>
>
>
> Drove Stevens Rd (Norwich-Thetford line) this am….. lots of Savannah
> Sparrows, bunch singing.
>
>
>
> Near the house, by the barn….. EaTo singing away.
>
>
>
> By barn on the ground:   1 Vesper Sparrow, savannah’s and several song
> sparrows.  White-throats and chipping nearby.
>
>
>
> Kendall Station:  1 House Wren singing. Lots of Yellow-rumps.  Gorgeous
> Pine Warbler.  Good look at a Swamp Sparrow in puddle along RR tracks.
>
>
>
> Heard RNPh at Campbell Flats.
>
>
>
>
>
> Happy days
>
>
>
> BiSh
>
>
>
>
>
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