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Hi again John & All,
I was not aware of this moth/candle effect but had in mind something=
=20
more responsive.
Say, taking a wind farm as an example, using acoustic or radar=20
signals to sense incoming birds and briefly turning that beacon on which=20
would best divert them from the farm.
I have seen birds migrating only once, Robins in Southern=20
California, and that was a non-stop river of birds snaking south along a=20
broad valley and over a pass just above the trees. That kind of flow=20
would need to be diverted only once. I expect migrations here are more=20
transient.
Yt, DW Kentville
------ Original Message ------
From: "John Kearney" <john.kearney@ns.sympatico.ca>
To: naturens@chebucto.ns.ca
Sent: 6/4/2018 8:00:31 PM
Subject: Re: Re[2]: [NatureNS] Breeding Bird Survey
>Not that I=E2=80=99m aware of David. Studies have shown that birds need to =
be=20
>within 2 km to be attracted. As for your suggestion, one would have to=20
>ensure that a wind turbine is not between the bird and the light.=20
>Nonetheless a strong light causes bird to circle it continuously, to=20
>the point of exhaustion. The memorial lights at ground zero in New York=20
>have to be turned off periodically during the night to allow circling=20
>birds to escape.
>John
>
>Sent from my iPhone
>
>On Jun 4, 2018, at 18:58, David <dwebster@glinx.com> wrote:
>
>>Hi John & All,
>> Are you saying that a light near a wind tower attracted the birds=20
>>? If so, has anyone tried using lights to divert traffic away from=20
>>wind towers ?
>>Yt, DW, Kentville
>>
>>------ Original Message ------
>>From: "John Kearney" <john.kearney@ns.sympatico.ca>
>>To: naturens@chebucto.ns.ca
>>Sent: 6/4/2018 2:50:42 PM
>>Subject: RE: [NatureNS] Breeding Bird Survey
>>
>>>I think that was a good decision James. Besides the cold, I find that=20
>>>there are still some birds migrating throughout the first week of=20
>>>June. A few years ago, someone left a light on at one of the wind=20
>>>farms I was surveying on the night of June 9th. In the morning there=20
>>>were 14 dead birds beneath it comprised of Red-eyed Vireos and=20
>>>Yellow-bellied Flycatchers. These would have been birds that are=20
>>>still migrating.
>>>
>>>John
>>>
>>>
>>>
>>>From:naturens-owner@chebucto.ns.ca <naturens-owner@chebucto.ns.ca> On=20
>>>Behalf Of James Hirtle
>>>Sent: Monday, June 04, 2018 04:36
>>>To: Naturens Naturens <naturens@chebucto.ns.ca>
>>>Subject: [NatureNS] Breeding Bird Survey
>>>
>>>
>>>
>>>I was going to do my breeding bird survey which starts at Jordan=20
>>>Falls, goes into Shelburne and up into Welshtown. I went out at=20
>>>03:00 and found that I had to scrape ice off of my windshield. Who=20
>>>would have thought on June 4 that ice would be heavy enough on the=20
>>>windshield so that the wipers would not remove it. Anyhow, I set off=20
>>>and went about a quarter of the way and thought to myself, what am I=20
>>>doing? I turned around and went back home and will run the route=20
>>>later in the month when the weather is warmer and the birds will be=20
>>>singing and calling as they normally would. The cold would not have=20
>>>made it a valid census.
>>>
>>>
>>>
>>>I'll focus on the western kingbird later in the morning found by John=20
>>>Robart. This bird was at the old Kirk's Christmas Tree Yard in=20
>>>Bridgewater. It is at the end of the Glenn Alen Subdivision across=20
>>>from the ball field. It is an area that provides public access if=20
>>>the bird sticks around.
>>>
>>>
>>>
>>>I also will be checking out the nesting phoebe and if the eastern=20
>>>bluebird pair are still around at Vogler's Cove.
>>>
>>>
>>>
>>>I think I'll also go out Western Shore way to a location for=20
>>>olive-sided flycatcher and black-throated blue warblers that=20
>>>traditionally nest there and check that location out. I'll post my=20
>>>findings later if successful and will send a report through to=20
>>>Dalhousie University in regards to the olive-sided flycatcher. I=20
>>>will need to go back to Wallace Lake to get a GPS location for the=20
>>>Canada Warbler for them.
>>>
>>>
>>>
>>>James R. Hirtle
>>>
>>>LaHave
>>>
>>>
>>>
>>><https://www.avast.com/sig-email?utm_medium=3Demail&utm_source=3Dlink&ut=
m_campaign=3Dsig-email&utm_content=3Dwebmail>
>>>
>>>Virus-free. www.avast.com=20
>>><https://www.avast.com/sig-email?utm_medium=3Demail&utm_source=3Dlink&ut=
m_campaign=3Dsig-email&utm_content=3Dwebmail>
>>>
>>>
>>>
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v>Hi again John & All,</div><div>=C2=A0 =C2=A0 I was not aware of this=
moth/candle effect but had in mind something more responsive.=C2=A0</div><d=
iv>=C2=A0=C2=A0=C2=A0=C2=A0Say, taking a wind farm as an example, using aco=
ustic or radar signals to sense incoming birds and briefly turning that bea=
con on which would best divert them from the farm.</div><div>=C2=