Colony Being Destroyed

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

Colony Being Destroyed

Postby rrmartins » Sun May 05, 2019 8:17 am

I now have four mother birds killed on their nest, totally eaten up stomachs, no idea what’s going on. This is just crazy, all my birds being killed and house is covered in martins. Can’t solve the problem if I don’t know what’s happening.
T14
2018
12 pair
53 fledged

wmfamily
Posts: 60
Joined: Sun Jun 11, 2017 8:32 pm
Location: St Louis

Re: Colony Being Destroyed

Postby wmfamily » Sun May 05, 2019 8:27 am

If they are being eaten on in the nest that isn't a normal predator. Do you have a predator guard installed?

Brad Biddle
Posts: 152
Joined: Wed Feb 17, 2016 6:22 pm
Location: Marshall County AL

Re: Colony Being Destroyed

Postby Brad Biddle » Sun May 05, 2019 8:35 am

Post pictures of the dead birds.
Martin landlord since 2003. Currently offering 102 plastic gourds with tunnels and all SREH.

Spiderman
Posts: 679
Joined: Thu Jan 31, 2008 9:19 am
Location: Gladewater, Texas

Re: Colony Being Destroyed

Postby Spiderman » Sun May 05, 2019 8:36 am

That is unique. Might try raking the ground around the poles and watch for tracks in the fresh dirt?
2008 - 33 PAIR - FLEDGED 96 YOUNG
2009 - 51 PAIR - FLEDGED 166 YOUNG
2010 - 45 PAIR - FLEDGED 146 YOUNG
2011 - 33 PAIR - 128 HATCHED, 97 FLEDGED
2012 - 37 PAIR - 119 HATCHED, 101 FLEDGED

John Miller
Posts: 4730
Joined: Mon Mar 22, 2004 9:11 pm
Location: St. Louis, MO

Re: Colony Being Destroyed

Postby John Miller » Sun May 05, 2019 9:05 am

very odd as others said. Could have died from weather and maggots eating? Infestation of blow flies? Maybe pour out nest material and examine. If other martins hanging around, that's very hopeful. Of course remove dead ones. ...possible a rat? Every idea on the table.

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

Re: Colony Being Destroyed

Postby rrmartins » Sun May 05, 2019 10:36 am

Bird netting on pole. Birds have been thrown away. Can a rat climb a round slick pole if it got past the bird netting? I have never had anything get up the pole. The only thing I can come up with is the over population of birds and they are the ones doing it. There are way too many martins here.
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 » Sun May 05, 2019 10:37 am

Bird netting on pole. Birds have been thrown away. Can a rat climb a round slick pole if it got past the bird netting? I have never had anything get up the pole. The only thing I can come up with is the over population of birds and they are the ones doing it. There are way too many martins here.
No maggots or blowflies, check housing every other day.
T14
2018
12 pair
53 fledged

MorganW_AL
Posts: 44
Joined: Wed Aug 08, 2018 11:21 am
Location: Alabama

Re: Colony Being Destroyed

Postby MorganW_AL » Sun May 05, 2019 8:29 pm

My first thought was the possibility of the martins being the culprits. I've never heard of that, though. Do you have any idea of what time of day the attacks may have happened?

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

Re: Colony Being Destroyed

Postby rrmartins » Sun May 05, 2019 9:20 pm

I have no idea. It has to be SY birds, I just don’t know.
T14
2018
12 pair
53 fledged

Spiderman
Posts: 679
Joined: Thu Jan 31, 2008 9:19 am
Location: Gladewater, Texas

Re: Colony Being Destroyed

Postby Spiderman » Sun May 05, 2019 11:29 pm

Bird netting on pole. Birds have been thrown away. Can a rat climb a round slick pole if it got past the bird netting? I have never had anything get up the pole. The only thing I can come up with is the over population of birds and they are the ones doing it. There are way too many martins here.
I thought about a rat too, could fire ants do something like that ?

Rat could definately climb the pole, no problem.
2008 - 33 PAIR - FLEDGED 96 YOUNG
2009 - 51 PAIR - FLEDGED 166 YOUNG
2010 - 45 PAIR - FLEDGED 146 YOUNG
2011 - 33 PAIR - 128 HATCHED, 97 FLEDGED
2012 - 37 PAIR - 119 HATCHED, 101 FLEDGED

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

Re: Colony Being Destroyed

Postby deancamp » Mon May 06, 2019 6:14 am

You mentioned totally eaten up stomach. Is this a two part event where someting is killing the bird and then stomach being eaten by something else. I think it would be very odd for an sy bird would eat another bird. Makes more sense to be killed by an sy and eaten by a maggot or something internally.

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 7:24 am

I haven’t seen any bug activity on any of the birds, I just don’t know, I didn’t study them that well. They are just totally mutilated and destroyed.
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 7:30 am

Bird netting on pole. Birds have been thrown away. Can a rat climb a round slick pole if it got past the bird netting? I have never had anything get up the pole. The only thing I can come up with is the over population of birds and they are the ones doing it. There are way too many martins here.
I thought about a rat too, could fire ants do something like that ?

Rat could definately climb the pole, no problem.
Really? A rat can clinch on too a round steel pipe?
I put Vaseline on it yesterday, can the rat make it through the bird netting as well?
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 7:31 am

Bird netting on pole. Birds have been thrown away. Can a rat climb a round slick pole if it got past the bird netting? I have never had anything get up the pole. The only thing I can come up with is the over population of birds and they are the ones doing it. There are way too many martins here.
I thought about a rat too, could fire ants do something like that ?

Rat could definately climb the pole, no problem.
Really? A rat can clinch on too a round steel pipe?
I put Vaseline on it yesterday, can the rat make it through the bird netting as well? Haven’t seen any bug activity on any of the birds.
T14
2018
12 pair
53 fledged

Kuemic
Posts: 163
Joined: Fri Jan 15, 2016 7:17 pm
Location: Topeka, KS
Martin Colony History: 2015 1 SY pair, 2 eggs destroyed by sparrow
2016 1 ASY pair, 5 eggs, 2 hatchlings, 2 fledged
2017 1 ASY pair, 5 eggs, 5 hatchlings, 5 fledged; 1 SY pair, 4 eggs not incubated
2018 daily visitors but no takers

Re: Colony Being Destroyed

Postby Kuemic » Mon May 06, 2019 8:12 am

Possibly a weasel? I found this online when searching for bird predators. Article states: "If birds are dead but not eaten and have parts still intact, a weasel may have attacked the flock. Members of the weasel family, including mink, kill just for the fun of killing. Often, the chickens’ bodies are bloodied. Also, you might notice that internal organs have been eaten."

I also read that a weasel can enter a 1/4 inch opening and can be a problem with tree swallows.



https://articles.extension.org/pages/71 ... try-flocks
Michelle in Topeka

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 8:32 am

Image
This one I just found on ground. So now we’re up to five. This one looks like just head trauma.
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 8:44 am

Image
This one I just found on ground. So now we’re up to five. This one looks like just head trauma.
First one found on ground, the eggs were eaten.
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 8:49 am

Image
This one I just found on ground. So now we’re up to five. This one looks like just head trauma.
First one found on ground, the eggs were pecked and laying on the ground.
T14
2018
12 pair
53 fledged

ToyinPA
Posts: 2041
Joined: Mon Apr 10, 2006 6:07 pm
Location: PA/Avis
Martin Colony History: The 1972 St. Agnes flood wiped out all the Martins in my area. One day, in 1997-98, 5 or 6 Martins landed on the power wires crossing my back yard. I had no house for them. They kept coming back day after day. We got a martin house a few weeks later & they have been coming back every year since. I average 12-15 pair per year.

Re: Colony Being Destroyed

Postby ToyinPA » Mon May 06, 2019 9:08 am

Wondering if you have a Kestrel (falcon family) attacking your colony. They are a small about the size of a blue jay. We had one land on our fence rail a few years ago. It was after HS. I was surprised how small it was. They go after HS & other small birds.

A Kestrel could get in your housing, depending on your entrance holes. The only suggestion is to shrink your entrances if possible.

Toy in PA
PMCA Member

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 9:31 am

This bird was definitely killed last night or very early morning. I don’t know. Ten years down the drain, I’m so mad I can’t think straight!!!
T14
2018
12 pair
53 fledged


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