Troyer horizontal question and Trio grandpa question

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zekeandbelle
Posts: 36
Joined: Sun May 15, 2016 9:47 am
Location: michigan

hello all,
This is the second year I've had troyer horizontals and I was surprised to see how very wet and dirty the nests were in the bottom this year when I changed nests at 10 days and 20 days. Is there a way to prevent this from happening? Lots of muck and wet, wet pine needles in the bottom center. I also have trio grandpa houses that I really don't like, but the martins absolutely love and always pick first! Does anyone else have trouble with the doors not closing easily and then flipping open unpredictably? I really don't want to buy another trio, because then I have to make another owl/hawk cage to go over it, but this house's doors are soooo difficult to open and close during nest checks. Just wondering if I have a problem house or if this is a frequent issue with trios..... still have some babies to fledge, but already trying to plan for next year. thanks for any advice,

jan
TheSmiths
Posts: 336
Joined: Mon May 12, 2014 1:02 pm
Location: Western KY
Martin Colony History:

Tried to attract PMs 2004; began more earnest attempt in 2014.

Current home site consisting of 2 modified Trio M12Ks, 4 ChirpyNests, and assorted artificial gourds, all enclosed in owl/hawk cages.

2018 — 3 pairs
2019 — 6 pairs
2020 — 12 pairs; barred owls late in season
2021 — 17 pairs; enclosed housing
2022 – 14 pairs
2023 – 18 pairs
2024 – 18 pairs
2025 – 24 pairs
2026 –

Manage FILs colony & public park colony. Attempting to start a colony at a wildlife refuge.

~20 years of providing housing for cavity nesting birds including Bluebirds, Carolina Wrens, House Wrens, Carolina Chickadees, Tufted Titmice, Great-Crested Flycatchers, Northern Flickers, & Prothonotary Warblers.

Sometimes water can come in through the hole that is used to hang the gourd. You can take a piece of tubing, pvc, etc. and cut it to fit inside the hole (this might require enlarging the hole depending on your setup) then use caulk or lexel to secure/seal it in place. PMCA also sells a "Gourd Leak Stopper" for the horizontal gourds if you'd rather purchase one.

We have an old Trio m12k with tight doors so I'm going to see if my spouse can loosen the nuts at the end of the season. (I tried once and had no luck). There is a brief discussion about door issueshere.
Spiderman
Posts: 991
Joined: Thu Jan 31, 2008 9:19 am
Location: Gladewater, Texas

On the Troyer Horizontals, I think if you add 3/4" vents to the back of the Gourd your moisture problem will go away.

I found they would create condensation on the inside without some "flow thru" ventilation.
Colony started in 2002

Offering 82 Troyer Horizontal Gourds

2018 - 45 PAIR - FLEDGED 203 MARTINS
2019 - 68 PAIR - FLEDGED 268 MARTINS
2020 - 82 PAIR - FLEDGED 392 MARTINS
2021 - 78 PAIR - FLEDGED 349 MARTINS
2022 - 76 PAIR - FLEDGED 373 MARTINS
2023 - 68 PAIR - FLEDGED 355 MARTINS

*2023 Added 2”X4” wire cages to all three Troyer Gemini Gourd Racks to deal with Great Horned Owl predation on Colony.
4th Gen Martin Fan
Posts: 1498
Joined: Thu Jul 04, 2013 1:19 pm
Location: TN/Collierville
Martin Colony History: I have been exposed to purple martin sounds in utero when my mother went out to get my father away from his martin colony.
I played around the martin colony every summer and watched as my father maintained his colony. In the late 50's until the 70's he did not notice European Starlings in south Texas.
When old enough, I helped maintain his colony. My primary task was eliminating English House Sparrows with a 1956 Benjamin 317 .177 air rifle.
When I settled into my own home, I started my first colony with an original Trio Castle and Trio Grandpa. When I moved again, I did not put up any martin houses. Frustration with European Starlings in the Southeast US was overwhelming.
Found PMCA Forum and learned about modern enlarged compartments and SREHs.
Inherited my father's last martin house, a Trio Grandma, modified it to modern specifications and have had good results since then.

Jan,
I agree with TheSmith's post and recommendations to fix your leaking Troyer Horizontal Gourds.
A common source of the wet nests in THGs is water leaking around the hanging hole. The plastic wears as the gourd hangs and swings on its hanging rod. It can happen with any plastic gourd but the wear seems to be more common with THGs because the tunnel extends out from the pivot point of the hanging rod. The center of gravity for the THG is not over the pivot point.
The stainless steel tube in the Gourd Leak Stopper sold by PMCA is excellent and will last beyond the life of the THG's plastic. If and when the THG needs replacing, then the stainless steel tube can be reused in the replacement THG. The instruction sheet for the Gourd Leak Stopper is concise and easy to follow.

Steve Kroenke wrote an excellent post with pictures, "Water Proofing The Troyer Horizontal Gourd Hanging Hole".
http://purplemartin.org/forum/viewtopic.php?f=2&t=28748
The article explains the problem and his solution with concise text and excellent pictures. Steve uses copper tubing but other members have used PVC tubing. Obviously these material will require more time and work than just ordering the ready to go Gourd Leak Stopper from PMCA.

If fixing these worn holes does not solve your problem, then other causes are condensation of water inside the gourd from inadequate ventilation or wicking of moisture from the drain holes in the bottom of the gourds.
Mark.
Firm believer in HOSP/EUST Control, Enlarged Compartments, SREHs, Pole Predator Guards, Owl/Hawk Guards, Mite/Parasite Control, Housing Insulation, and Vents for Compartment Cooling.
PMCA Member.
4th Gen Martin Fan
Posts: 1498
Joined: Thu Jul 04, 2013 1:19 pm
Location: TN/Collierville
Martin Colony History: I have been exposed to purple martin sounds in utero when my mother went out to get my father away from his martin colony.
I played around the martin colony every summer and watched as my father maintained his colony. In the late 50's until the 70's he did not notice European Starlings in south Texas.
When old enough, I helped maintain his colony. My primary task was eliminating English House Sparrows with a 1956 Benjamin 317 .177 air rifle.
When I settled into my own home, I started my first colony with an original Trio Castle and Trio Grandpa. When I moved again, I did not put up any martin houses. Frustration with European Starlings in the Southeast US was overwhelming.
Found PMCA Forum and learned about modern enlarged compartments and SREHs.
Inherited my father's last martin house, a Trio Grandma, modified it to modern specifications and have had good results since then.

Spiderman's recommendation of ventilation in plastic gourds is important. I cannot imagine the misery of the heat and humidity which can occur in a plastic gourd especially in a hot and humid climate like Texas. Today's forecast for Gladewater, TX is 104 degrees F with 44% humidity making the heat index 108 degrees F. The heat and humidity in an non-ventilated plastic gourd would be unbearable. No wonder some martin nestlings jump prematurely.
As another example, today's Muskegon, MI's forecast is 80 degrees F with 69% humidity. Although the temperature is not as high, the humidity could be a problem.
Mark.
Firm believer in HOSP/EUST Control, Enlarged Compartments, SREHs, Pole Predator Guards, Owl/Hawk Guards, Mite/Parasite Control, Housing Insulation, and Vents for Compartment Cooling.
PMCA Member.
Dave Reynolds
Posts: 2444
Joined: Mon Jan 31, 2011 4:35 pm
Location: Little Hocking, Oh.
Martin Colony History: Satellite Site “Oxbow Golf Course”..
2018 - 15 Pair, 36 Fledged
2019 - 26 Pair, 97 Fledged
2020 - 30 Pair, 137 Fledged
2021 - 30 Pair, 144 Fledged
2022 - 27 Pair, 125 Fledged
2023 - 31 Pair, 130 Fledged
2024 - 41 Pair, 198 Fledged
2025 - 44 Pair, 168 Fledged

Home Site "Little Hocking, Ohio".
2019 - 1 Pair, 5 Fledged
2020 - 1 Pair, 4 Fledged
2021 - 8 Pair, 36 Fledged
2022 - 13 Pair, 46 Fledged
2023 - 16 Pair, 84 Fledged
2024 - 22 Pair, 104 Fledged
2025 - 28 Pair, 83 Fledged

zekeandbelle wrote:
Sat Jul 21, 2018 9:35 pm
hello all,
This is the second year I've had troyer horizontals and I was surprised to see how very wet and dirty the nests were in the bottom this year when I changed nests at 10 days and 20 days. Is there a way to prevent this from happening? Lots of muck and wet, wet pine needles in the bottom center. I also have trio grandpa houses that I really don't like, but the martins absolutely love and always pick first! Does anyone else have trouble with the doors not closing easily and then flipping open unpredictably? I really don't want to buy another trio, because then I have to make another owl/hawk cage to go over it, but this house's doors are soooo difficult to open and close during nest checks. Just wondering if I have a problem house or if this is a frequent issue with trios..... still have some babies to fledge, but already trying to plan for next year. thanks for any advice,

jan
.....

I had one of my doors on my Trio that keep popping open.. I found the floor was best and this allow the door clip to not hold the door shut.. I’m a golfer and my houses are on the Golf Course, I had a few golf Tees in my pocket.. I just slipped a golf Tee under part of the door clip and it held the clip up against the door so it would not open.. When I did my nest checks, I just pull the Tee out and opened the door.. Hope this helps..

Dave
PMCA Member
Little Hocking, Ohio
zekeandbelle
Posts: 36
Joined: Sun May 15, 2016 9:47 am
Location: michigan

Hello again,
Thanks so much! I had no idea the hanging hole was an issue! I'll be ordering the tubes from pmca. I do switch to the vented caps sold by troyers once it gets hot outside (michigan), and there are hatchlings in the gourds, but I'm also thinking the bottom drain holes must be wicking some moisture. I'll order the tubes tomorrow... And the link to the info on doors was very, very helpful... thanks again to all you experts for your help..You always know everything! :-) I'll work on the trio (I enlarged compartments a few years ago), problems as soon as the season ends... Still have the last two babies to fledge!
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