Colony Being Destroyed

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vman
Posts: 49
Joined: Fri Apr 14, 2017 10:42 pm
Location: wisconsin
Martin Colony History: have not had martins for last 20 yrs. trying to re establish a colony
2018 1 asy pair fledged 2

Re: Colony Being Destroyed

Postby vman » Mon May 06, 2019 9:55 am

I would get a motion camera installed if you can, a weasel sounds like a possiblity but until you get some kind of visual evidence it's hard to say,hang in there and don't give up!!
Jim

rrmartins
Posts: 1340
Joined: Tue Oct 19, 2010 8:04 am
Location: Round Rock, TX

Re: Colony Being Destroyed

Postby rrmartins » Mon May 06, 2019 9:56 am

Wouldn’t the male be killed also at night time?
T14
2018
12 pair
53 fledged

sugarcreek
Posts: 189
Joined: Sun Mar 27, 2016 10:43 am
Location: Sugarcreek, Ohio
Martin Colony History: 2016 First Yr.

Re: Colony Being Destroyed

Postby sugarcreek » Mon May 06, 2019 10:15 am

I would be sleeping out by the poles or installing a camera if they were mine, that does look like a rat, Wiesel type kill.
2016 - 1st Yr. 14 Compartments 4 Active Nests 9 fledged, 2.25 Fledged per Active Nest
2017 - 2nd Yr. 36 Compartments 18 Active Nests 65 Fledged, 3.61 Fledged per Active Nest
2018 - 3rd Yr. 54 Compartments 43 Active Nests 169 Fledged, 3.93 Fledged per Active Nest
2019 - 4th Yr. 108 Compartments ??

rrmartins
Posts: 1340
Joined: Tue Oct 19, 2010 8:04 am
Location: Round Rock, TX

Re: Colony Being Destroyed

Postby rrmartins » Mon May 06, 2019 10:41 am

Just asking. I live in the middle of a big city with no forest/woods in my area, are there even weasels in my area, would you think?
T14
2018
12 pair
53 fledged

deancamp
Posts: 106
Joined: Wed Mar 16, 2016 9:17 pm
Location: MO

Re: Colony Being Destroyed

Postby deancamp » Mon May 06, 2019 10:59 am

How about mounting a game camera in some fashion to get a picture or video.

deancamp
Posts: 106
Joined: Wed Mar 16, 2016 9:17 pm
Location: MO

Re: Colony Being Destroyed

Postby deancamp » Mon May 06, 2019 11:16 am

If you only have netting, maybe add a metal predator guard.

rrmartins
Posts: 1340
Joined: Tue Oct 19, 2010 8:04 am
Location: Round Rock, TX

Re: Colony Being Destroyed

Postby rrmartins » Mon May 06, 2019 12:25 pm

No funds for camera. On fixed income.
T14
2018
12 pair
53 fledged

steger424
Posts: 27
Joined: Sun Apr 30, 2017 3:43 pm
Location: Timmonsville SC

Re: Colony Being Destroyed

Postby steger424 » Mon May 06, 2019 1:19 pm

A deer camera is sometimes quite inexpensive at a local sporting goods store or walmart. Ive seem them for around $50. It would be a huge purchase to find your culprit. I myself am curious.

vman
Posts: 49
Joined: Fri Apr 14, 2017 10:42 pm
Location: wisconsin
Martin Colony History: have not had martins for last 20 yrs. trying to re establish a colony
2018 1 asy pair fledged 2

Re: Colony Being Destroyed

Postby vman » Mon May 06, 2019 2:30 pm

None of this is making much sense, if it were a weasel they would tend to kill everything in the house, rats are not carnivorous unless they are starving, you said there are still martins in the house, they would tend to abandon the site if it were predators. Post pictures of your site if you can, keep watch as much as possible, a camera might be the only way to see.
Jim

rrmartins
Posts: 1340
Joined: Tue Oct 19, 2010 8:04 am
Location: Round Rock, TX

Re: Colony Being Destroyed

Postby rrmartins » Mon May 06, 2019 2:46 pm

Image
T14
2018
12 pair
53 fledged

MNguy
Posts: 25
Joined: Mon Mar 06, 2017 2:58 pm
Location: Dakota Cty, MN
Martin Colony History: 2014 - first year, zero activity
2015 - Nothing
2016 - SY male visited and stayed a few weeks, unable to attract a mate
2017 - SY pair arrived June 6 - 3 eggs laid, 2 hatched, 1 fledged.
2018 - ASY male, SY female - 5 eggs, 5 hatched, lost all 5 prematurely
2019 - ???

Re: Colony Being Destroyed

Postby MNguy » Mon May 06, 2019 2:50 pm

I've got a couple of game cameras sitting around not being used. I could ship you one, but I'm way up in MN. I think you'd just need some new batteries. Probably 3-4 days transit. Let me know.

rrmartins
Posts: 1340
Joined: Tue Oct 19, 2010 8:04 am
Location: Round Rock, TX

Re: Colony Being Destroyed

Postby rrmartins » Mon May 06, 2019 3:01 pm

PM sent
T14
2018
12 pair
53 fledged

Courtney-NC
Posts: 585
Joined: Tue Jul 15, 2008 2:28 pm
Location: Holly Springs, NC
Martin Colony History: 2009-2015-Helped to manage Raleigh site, 36 cavities
2016- 33 pairs at Raleigh site, 1 pair at home site.
2017- 34 pairs at Raleigh site, 3 pairs + extra SYs at home site
2018- 33 pairs at Raleigh site, 5 pairs + extra SYs at home site
2019 - 32 pairs at Raleigh site, 7 pairs at home site, 2 pairs at new Holly Springs park site

Re: Colony Being Destroyed

Postby Courtney-NC » Mon May 06, 2019 4:05 pm

By looking at the photo posted on Photobucket above, I am inclined to think it's a ground predator, like a raccoon, since you don't have a (solid) predator guard/baffle. They can get past netting. If you can't afford to buy a commercial one, you can try making one. You can buy a 5 ft long section of smooth stovepipe (8 inches in diameter) at Lowes or Home Depot or other big box store, cut it in half (I like mine extra long here in the South, more than 24 inches). Use Hardware cloth on the top. Directions here:
https://www.purplemartin.org/uploads/me ... es-496.pdf

So sorry this is happening to you. I hope you are able to solve the problem.
-Courtney
-------------------
NC Purple Martin Society (PMCA affiliate)
http://www.ncpurplemartin.org

rrmartins
Posts: 1340
Joined: Tue Oct 19, 2010 8:04 am
Location: Round Rock, TX

Re: Colony Being Destroyed

Postby rrmartins » Mon May 06, 2019 4:18 pm

I understand. But wouldn’t a coon pull it out of the nest instead of killing it on the nest, no way a coon can get inside a clinger entrance. Just thinking out loud.
T14
2018
12 pair
53 fledged

rrmartins
Posts: 1340
Joined: Tue Oct 19, 2010 8:04 am
Location: Round Rock, TX

Re: Colony Being Destroyed

Postby rrmartins » Mon May 06, 2019 4:20 pm

I understand. But wouldn’t a coon pull it out of the nest instead of killing it on the nest, no way a coon can get inside a clinger entrance. Just thinking out loud.
The only bird found on the ground was today and it was not eaten.
T14
2018
12 pair
53 fledged

Laverne
Posts: 2215
Joined: Thu Jan 08, 2004 1:58 pm
Location: TX/Alvin
Martin Colony History: Erected 1st house in 1997. Birds were checking it out before Mike got down from the ladder. Six cavities had a little colony 1st year. Grown to 88 cavities all gourds with near 100% occupancy. Most important factor for success is rain = bugs.

Re: Colony Being Destroyed

Postby Laverne » Mon May 06, 2019 4:44 pm

Oh my goodness! I know you are a great landlord and this is not the work of a snake. It's happening at night (so nocturnal). Your question about a rat climbing the pole. You know that they can, but would they? And would the Martin sit still for the rat to gnaw him to death? No. You have an unusual predator. Have you thought about a night camera triggered by motion? A game cam? Then you could see it and know what you're dealing with. Please don't give up and don't let it drive you nuts. We will figure this out.
Sincerely,
Laverne

Barry Wallace
Posts: 28
Joined: Wed Feb 22, 2012 9:29 am
Location: (Wisconsin) Cumberland

Re: Colony Being Destroyed

Postby Barry Wallace » Mon May 06, 2019 5:02 pm

Courtney gave you good advice. The only time I've seen birds killed and consumed inside a cavity turned out to be a red squirrel. I know you don't have them in your area but a weasel is definitely possible. I would have a stovepipe guard on that pole tonight. Be sure and stuff the top with hardware cloth or balled up chicken wire.
Landlord since 1987

rrmartins
Posts: 1340
Joined: Tue Oct 19, 2010 8:04 am
Location: Round Rock, TX

Re: Colony Being Destroyed

Postby rrmartins » Mon May 06, 2019 6:08 pm

I got a five gallon bucket I can cut real quick and fit it over bird netting.
T14
2018
12 pair
53 fledged

rrmartins
Posts: 1340
Joined: Tue Oct 19, 2010 8:04 am
Location: Round Rock, TX

Re: Colony Being Destroyed

Postby rrmartins » Mon May 06, 2019 6:27 pm

Image
T14
2018
12 pair
53 fledged

GFB
Posts: 40
Joined: Sun Dec 23, 2018 5:05 pm
Location: Ontario NY
Martin Colony History: Started building custom vinyl Martin houses last year 2018 and was successful with 10 birds fledged and it looks like several dozen birds are hanging around. Time to expand.
2018: 1 T-14 and 6 gourds.
2019: 2 T-14's and 6 gourds.

Re: Colony Being Destroyed

Postby GFB » Mon May 06, 2019 6:59 pm

I'm also also thinking weasel, your winch is low and it could easily use the cable and climb over using the extra compartment you have on the bottom of your T14. The bucket should work. So sorry.


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