Distance between racks

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jpp77
Posts: 175
Joined: Mon Apr 17, 2017 9:21 pm
Location: Lawrence, KS area
Martin Colony History: 2015 - 1 pair, not successful (Sparrows)
2016 - 1 pair, 4 young
2017 - 5 pair, 23 young
2018 - 8 pair, 40 young, two deaths most likely due to heat.
2019 - 18 pair, 74 eggs, 1 nest abandoned, all the rest successful.
2020 - 32 nests, unknown exact egg numbers, 1 death.

Putting up a second Gemini rack to max out my colony size. About how far apart should I place the ground stakes?
Brad Biddle
Posts: 523
Joined: Wed Feb 17, 2016 6:22 pm
Location: Marshall County AL

There’s no set distance. You can put them very close together or spread them apart. I have seen numerous successful sites with them close enough that the gourds from 2 separate poles are no more than 3 feet apart. I have some 30-40 feet apart too
Martin landlord since 2003. Currently offering 132 plastic gourds with tunnels and all SREH.
Dave Duit
Posts: 1760
Joined: Tue Nov 25, 2003 2:02 pm
Location: Iowa / Nevada
Martin Colony History: In 2020, 60 pair with 285 fledged youngsters. 83 total cavities available, 58 Troyer Horizontal gourds and 4 modified deep trio metal house units, 1 fallout shelter, owl cages around all units. Martin educator and speaker. President and founder of the Iowa Purple Martin Organization. Please visit www.iamartin.org and join.

Hi jpp77,
My racks are 5 feet apart at their closest points. The martins seem to be unaffected by the distance.
Mite control, heat venting, predator protection and additional feeding during bad weather add up to success.
Spiderman
Posts: 778
Joined: Thu Jan 31, 2008 9:19 am
Location: Gladewater, Texas

Closer the better!
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: 413
Joined: Wed Mar 16, 2016 9:17 pm
Location: Raymore, MO

I had 2 racks 25' apart, it seemed they would have been more comfortable had they been closer.They liked to bounce back back and forth between the 2. I reconfigured and they will be 16' apart, we will see.
daveh
Posts: 653
Joined: Wed Oct 22, 2008 7:40 am
Location: Kingsville Mo.

I have six poles spaced 30 feet from each other. The birds don't care and it's easy to mow around them with my lawnmower or tractor.

Dave
PMCA member
John Evans
Posts: 308
Joined: Mon Mar 17, 2014 3:56 pm
Location: Cocoa Beach Florida

In Ohio, I had 4 racks clustered together about 15' apart. The Martins loved the closeness and so did the Coopers Hawks.I seriously contemplated spreading them out at least 100' as we had enough property, to possibly give the martins a better chance to escape attacks. It was pretty easy for the hawks to just plow into a hundred plus martins in close proximity and get lucky sometimes.

John
PMCA Member
daveh
Posts: 653
Joined: Wed Oct 22, 2008 7:40 am
Location: Kingsville Mo.

Very good point John.

Dave
PMCA member
Dave Duit
Posts: 1760
Joined: Tue Nov 25, 2003 2:02 pm
Location: Iowa / Nevada
Martin Colony History: In 2020, 60 pair with 285 fledged youngsters. 83 total cavities available, 58 Troyer Horizontal gourds and 4 modified deep trio metal house units, 1 fallout shelter, owl cages around all units. Martin educator and speaker. President and founder of the Iowa Purple Martin Organization. Please visit www.iamartin.org and join.

Good insight John. As for me, I'm restricted to yard space. You are right, any large congregation of birds is a dinner bell for hawks and owls.
Mite control, heat venting, predator protection and additional feeding during bad weather add up to success.
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