Adjustable Excluder Entrances

Welcome to the internet's gathering place for Purple Martin enthusiasts
Post Reply
Kyler
Posts: 893
Joined: Mon Apr 11, 2016 10:15 pm
Location: Colby, Kansas
Martin Colony History: PMCA Member - Project MartinWatch - Enlarged Compartments - SREH - S&S Control - Mite Control - Predator Guards - Heat Control ( Vents and Insulation ) - Supplemental Feeding -

Manage 8 Colonies that consist of 250 Cavities in Colby Kansas.

Offer 78 Cavities Main Site
Offer 12 Cavities Golf Course
Offer 30 Cavities Grandpa’s Public Site
Offer 28 Cavities Grandpa’s Site
Offer 12 Cavities Homeowners Site
Offer 48 Cavities Homeowners Site
Offer 6 Cavities Home Site
Offer 36 Cavties Homeowners Site

I have tried many excluder entrances on all of my Trios and I never really have much luck with them. All the martins seemed like they couldn’t fit through. I know they have to train themself to get in. I made a adjustable one last year and had a lot of success with it. It wasn’t made very nice so I decided to make some newer ones. It allows you to raise the entrance slightly to accommodate bigger birds.

Old Adjustable Entrance From Last Year.

Image

The Brand New One.

Image

Image

Image

Image

In The Making.

Image

Image

Kyler,
Purple Martin Landlords of Northwest KS
https://m.youtube.com/channel/UC9HDLGlbCmSYcSExIySwUQA

2013 & 2015 - 0 Pair -
2014 - 1 Pair - 4 Eggs - 3 Hatched - 3 Fledged -
2016 - 5 Pair - 27 Eggs - 24 Hatched - 13 Fledged -
2017 - 18 Pair - 102 Eggs - 78 Hatched - 69 Fledged -
2018 - 22 Pair - 115 Eggs - 92 Hatched - 86 Fledged -
2019 - 28 Pair - 144 Eggs - 131 Hatched - 125 Fledged -
2020 - 40 Pair - 190 Eggs - 133 Hatched - 111 Fledged So Far - (Bad Year! To Many Single SY Males)
daveh
Posts: 653
Joined: Wed Oct 22, 2008 7:40 am
Location: Kingsville Mo.

Kyler, excluders from Nature House work well for me. They slide thru them nicely. Occasionally not often, would have to enlarge the excluder or a crescent for those birds that had odd growths 0n there bodies. One year a asy female had a large bump on her breast and was having a hard time going thru the excluder so I enlarged. Another year, a humpback asy male was having trouble going thru a crescent so I enlarged. So there are odd shaped birds that need some attention and your adjustable excluder sounds likea good idea. Especially on Trio houses that have doors that come off easy and replaced with your adjustable door.

Dave
PMCA member
Brad Biddle
Posts: 523
Joined: Wed Feb 17, 2016 6:22 pm
Location: Marshall County AL

I like the idea. I would suggest putting a stop on them so they can't close lower than they need to. For safety reasons.
Martin landlord since 2003. Currently offering 132 plastic gourds with tunnels and all SREH.
Matt F.
Posts: 3896
Joined: Mon Feb 28, 2005 9:48 am
Location: Houston, TX

Cool idea!
The only other time I've seen adjustable Excluders, was in a YouTube video posted some years, back longtime landlord Rick Cruz:
https://www.youtube.com/watch?v=hh3j1g-vDw4
To go along with what Brad was saying, in the video you see Rick has his setup to where the plate can't go down any further, once it's dropped down to allow for the normal Excluder height.
Kyler
Posts: 893
Joined: Mon Apr 11, 2016 10:15 pm
Location: Colby, Kansas
Martin Colony History: PMCA Member - Project MartinWatch - Enlarged Compartments - SREH - S&S Control - Mite Control - Predator Guards - Heat Control ( Vents and Insulation ) - Supplemental Feeding -

Manage 8 Colonies that consist of 250 Cavities in Colby Kansas.

Offer 78 Cavities Main Site
Offer 12 Cavities Golf Course
Offer 30 Cavities Grandpa’s Public Site
Offer 28 Cavities Grandpa’s Site
Offer 12 Cavities Homeowners Site
Offer 48 Cavities Homeowners Site
Offer 6 Cavities Home Site
Offer 36 Cavties Homeowners Site

Matt & Brad
Yes I agree with both of you. I never even thought about that when I was cutting them. Thanks for the idea. I will definitely be changing them. I’m trying to cut my own entrances. I’m pretty sure Brad told me about using a router on the PVC board. I’m still trying to figure something out. I have made several jigs but they all haven’t worked for me so far.

Kyler,
Purple Martin Landlords of Northwest KS
https://m.youtube.com/channel/UC9HDLGlbCmSYcSExIySwUQA

2013 & 2015 - 0 Pair -
2014 - 1 Pair - 4 Eggs - 3 Hatched - 3 Fledged -
2016 - 5 Pair - 27 Eggs - 24 Hatched - 13 Fledged -
2017 - 18 Pair - 102 Eggs - 78 Hatched - 69 Fledged -
2018 - 22 Pair - 115 Eggs - 92 Hatched - 86 Fledged -
2019 - 28 Pair - 144 Eggs - 131 Hatched - 125 Fledged -
2020 - 40 Pair - 190 Eggs - 133 Hatched - 111 Fledged So Far - (Bad Year! To Many Single SY Males)
Post Reply