Search found 15 matches

by Jack Gulvin
Mon Nov 17, 2014 9:47 am
Forum: Purple Martin Forum
Topic: moth photo in new Update
Replies: 4
Views: 2931

Whew, too many species. I guess I'm free to give them any name: tasty suicidal mystery moths.
by Jack Gulvin
Fri Nov 14, 2014 11:37 am
Forum: Purple Martin Forum
Topic: moth photo in new Update
Replies: 4
Views: 2931

moth photo in new Update

The martin on page 3 has a couple brown moths in her beak. My martins this summer were catching a lot of these moths. Does anyone know what species of moth, or why they fly in daytime instead of at night?
by Jack Gulvin
Tue Oct 07, 2014 8:47 pm
Forum: Purple Martin Forum
Topic: Boric acid instead of Sevin
Replies: 5
Views: 4362

Good idea, Ed. I'll use the discarded nests to mulch nearby small trees. A blowfly specialist would be very interesting.
by Jack Gulvin
Sun Oct 05, 2014 8:13 pm
Forum: Purple Martin Forum
Topic: Boric acid instead of Sevin
Replies: 5
Views: 4362

The link was interesting but I'm with Emil on this and will stay with Sevin (in very tiny amounts) although I worry that I may be killing the jewel wasps that are supposed to parasitise the blowfly larvae.
by Jack Gulvin
Wed Oct 01, 2014 8:54 am
Forum: Purple Martin Forum
Topic: Boric acid instead of Sevin
Replies: 5
Views: 4362

Boric acid instead of Sevin

Last spring I was blowing in a lot of cellulose insulation, thereby breathing a lot of boric acid. So I looked it up on the internet and was surprised to find nothing about adverse health effects, for humans anyway. Then this summer at one of my martin talks I was asked if boric acid would be better...
by Jack Gulvin
Mon Jan 27, 2014 8:39 am
Forum: Purple Martin Forum
Topic: Landlord Chances "doubled"!
Replies: 15
Views: 8968

I have five poles at public sites and use padlocks in holes drilled in the cable spools of the winches. This works fine but sometimes damage is caused by kids goofing around at night when they stand on the winch handle. This causes so much pressure on the cable it can wedge in the pulley at the top ...
by Jack Gulvin
Mon Jan 27, 2014 8:20 am
Forum: Purple Martin Forum
Topic: Concrete, gravel, both?
Replies: 17
Views: 13695

Ask your local utility workers how they backfill the base of poles. Around here they use pea stone, not concrete.
by Jack Gulvin
Thu Jan 19, 2012 1:21 pm
Forum: Purple Martin Forum
Topic: Sparrow Control in Public Spaces
Replies: 10
Views: 4995

John Miller is right - a strong colony can repel most sparrows. But a few get through. Here's how I've learned to deal with them. I wait until the sparrow has completed her clutch and is incubating. Then I install a glue trap. I cut the trap in half lengthwise and form it into a tube with the sticky...
by Jack Gulvin
Wed Jan 18, 2012 9:47 am
Forum: Purple Martin Forum
Topic: How to put SREH on round-hole supergourds
Replies: 16
Views: 8234

Thank you to all who responded. Especially Matt, who sent me to my stack of Update back issues and the detailed article that got me going. I now have a prototype, using a simple flat plate for the bottom of the crescent and a bit of cutting to make the top of the crescent. Quick, cheap and little cu...
by Jack Gulvin
Fri Jan 13, 2012 10:08 am
Forum: Purple Martin Forum
Topic: How to put SREH on round-hole supergourds
Replies: 16
Views: 8234

Thank you to Bill and Emil. A heavy tunnel would cause tilt, plus I'm not eager to do major sawing. These gourds are not mine. They belong to a widow lady and were a gift from her son. I've wondered about a short tunnel attached to the gourd with screws, or maybe having the access cap modified to al...
by Jack Gulvin
Thu Jan 12, 2012 9:44 pm
Forum: Purple Martin Forum
Topic: How to put SREH on round-hole supergourds
Replies: 16
Views: 8234

How to put SREH on round-hole supergourds

I have a dozen supergourds and starlings have been a problem. I'd like to change to SREH with little or no cutting of the gourds. Any ideas on how to do this?
by Jack Gulvin
Thu Apr 23, 2009 9:06 pm
Forum: Purple Martin Forum
Topic: I want to convert roundhole Supergourds to SREH
Replies: 3
Views: 4850

Thank you for the ideas. This sure beats trying to come up with a solution from scratch. Everything is set at Chautauqua for another great season.
by Jack Gulvin
Wed Apr 22, 2009 9:57 am
Forum: Purple Martin Forum
Topic: I want to convert roundhole Supergourds to SREH
Replies: 3
Views: 4850

I want to convert roundhole Supergourds to SREH

A widow in town has a 12 gourd rack that had 100% martin occupancy last year. This year the starlings are a problem. She doesn't want to fool with the trap, and shooting takes too much of my time. Given the high population of starlings, SREH is the way to go. I do not see any easy way to change her ...
by Jack Gulvin
Fri Apr 13, 2007 1:20 am
Forum: Purple Martin Forum
Topic: T-14 modifications
Replies: 11
Views: 15655

The hole is one and three eights inch. A trip wire inside is connected to a trap door outside. It's my own design, I wish I could send a photo. It might be possible to adapt a Spare-O-Door, or at least copy the design.
by Jack Gulvin
Wed Apr 11, 2007 7:16 pm
Forum: Purple Martin Forum
Topic: T-14 modifications
Replies: 11
Views: 15655

I have three t-14s. On each one I converted one attic to a special sparrow apartment. Works well. The hardest part was removing the triangular gable end. A T-14 is well built and not designed to come apart.