Tree swallows

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Fuzzmeister
Posts: 178
Joined: Mon Sep 25, 2017 9:02 pm
Location: Saskatchewan Canada

I built a sparrow trap box similar to a bluebird nesting box with a 1 3/16 hole size I set it out and that morning I checked it and something had triggered the mechanism, I opened the door expecting a sparrow but here was this pretty purpulish white belley bird starring at me, I released it and now I’m wondering will they live with purple martins in the same houses if the purple martins do not occupy all of the cavities? I actually caught this bird 3 times and I’m presuming they would have built a nest in it so I took it down, I don’t know anything about tree swallows hoping some one can give me some info on them thanks.
randyM
Posts: 254
Joined: Thu Jun 18, 2015 2:30 pm
Location: Long Lake SD
Martin Colony History: * 2016 - 1 pair (ASYM + SYF) 2/3 eggs hatched 2 young fledged.
* 2017 - 4 pairs, 16/17 eggs hatched, 16 fledged, 16 banded - 2 banded SY returned in 2018 (12.5%)
* 2018 - 10 pairs, 46/52 eggs hatched, 45 fledged, 29 young banded - 3 banded SY returned in 2019 (10.3%)
*2019 - 32 pairs, 145/160 eggs hatched, 139 fledged - 87 young banded - 12 banded SY returned in 2020 (13.8%).
* 2020 - 35 pairs, 180/199 eggs hatched, 178 fledged - 150 young banded & 42 SY returned (28.0%)
* 2021 - 89 pairs, 363/446 eggs hatched, 355 fledged - 150 young banded & 19 SY returned (12.7%)
*2022 - 116 pairs, 495/579 eggs hatched, 471 fledged - 150 young banded & 27 SY returned (18.0%)
*2023 - 160 pairs, 708/828 eggs hatched, 572 fledged - 150 young banded & 38 SY returned (25.3%)
*2024 - 235 pairs, 950/1153 eggs hatched, 865 fledged - 100 young banded & 18 SY returned (18.0%)
*2025 - 200 pairs, 795/953 eggs hatched, 739 fledged - 200 young banded

Tree swallows can live in the same housing units at the same time as martins....however, if you do not have an established martin colony, tree swallows are notorious for chasing away martins that stop by for a visit and thus can prevent a martin colony from becoming established at that location. If you don't have individual bluebird/tree swallow houses within 50 feet or so of your martin housing, perhaps it would be a good idea to put a few such houses nearby to hopefully attract swallows away from your elevated martin housing. About 4 years ago I had my first pair of martins nest in a multi compartment wooden house and had a pair of tree swallows nest in a gourd hanging from the house directly below the cavity the martin pair used. Both species successfully fledged all of their young that year. There were a few minor skirmishes before nesting, but after that both pairs got along with each other fine. This year so far I have about 10 martin pairs, and a pair of tree swallows again is trying to nest in a gourd beneath one of my wooden houses. Some of the martins pester the swallows periodically, but the tree swallows seem to be holding their own and are building a nest in the gourd, while 4 martin pairs are building nests in the associated wooden house. I have many other "bluebird boxes' and smaller gourds individually placed around my property that are occupied by lots of tree swallows. At some point in the very near future, I hope to have more nesting martin pairs than nesting tree swallow pairs. On average I typically get about 50-60 nesting tree swallows...I have 15 ASY male martins (and about 10 ASY females), so hopefully I'll get at least 20 nesting martin pairs once the subbies arrive in full force in the next few weeks. Good luck to you this season!!
FarmerHarv
Posts: 74
Joined: Fri Jul 06, 2018 1:18 pm
Location: West Central Saskatchewan
Martin Colony History: 2018 - First house up in late June, lots of visitors brought over by “Percy”, a very enthusiastic SY male.
2019 - 10 nests, 51 eggs, 41 hatched, 40 fledged.

I put up a dozen tree swallow boxes this year and the little fighter jets are buzzing all over the yard now. They've never even looked at the martin housing, and although they squabble amongst themselves they'll perch with the martins without any trouble. If you put some up, make sure the boxes are big enough (Bluebird boxes are too small for TS) and far enough apart (at least 100').

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flyin-lowe
Posts: 3789
Joined: Wed Mar 29, 2006 8:49 am
Location: Indiana/Henry Co.

Once you have an established colony the tree swallows are less of a concern. They have very high populations in my area and now that I have an established colony I keep the martin housing closed until PM's arrive and the TS stop trying to get into the housing as the martins fill in. One time years ago I actually had 2 pair of tree swallows nesting next to each other in a gourd rack that also had martins. That is the only time they have actually nested in my martin housing after getting returning martins.
2026 HOSP 27
2025 62 pair HOSP 20
2024 60 pair, HOSP 44
2023 60+ pair, HOSP 8
2022 60 nests with 262 eggs, HOSP 14
2021 62 pair, HOSP 9
2020 42 nest, HOSP 8
2019- 31 pair
2018- 15 pair 49 fledged
2017 3 SY pair, 12 eggs , fledged 10. 4 additional lone SY's
2016 1 pair fledged 4
2015 Visitors
2014 Visitors
2013 Moved 6 miles, 1 pair fledged 2.
2012 30 pair fledged 100.
2011 12 pair 43 fledged.
2010 5 pair 14 fledged.
daltonmissouri
Posts: 37
Joined: Sat Jun 25, 2016 2:16 pm
Location: Perryville, MO

FarmerHarv wrote:
Fri May 17, 2019 7:26 am
I put up a dozen tree swallow boxes this year and the little fighter jets are buzzing all over the yard now. They've never even looked at the martin housing, and although they squabble amongst themselves they'll perch with the martins without any trouble. If you put some up, make sure the boxes are big enough (Bluebird boxes are too small for TS) and far enough apart (at least 100').

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We have tree swallows nesting in bluebird boxes every year.
Fuzzmeister
Posts: 178
Joined: Mon Sep 25, 2017 9:02 pm
Location: Saskatchewan Canada

They actually are a very pretty bird and similar to a purple Martin but I live in a small town and I have 2 purple Martin houses up that are now full of pairs of martins, I don’t think it’s a good idea to put up more bird houses for fear that my neighbors are already thinking I am bird crazy. FarmerHarv what is the proper size house for tree swallows? Thanks for all the info on tree swallows guys I appreciate it cheers.
FarmerHarv
Posts: 74
Joined: Fri Jul 06, 2018 1:18 pm
Location: West Central Saskatchewan
Martin Colony History: 2018 - First house up in late June, lots of visitors brought over by “Percy”, a very enthusiastic SY male.
2019 - 10 nests, 51 eggs, 41 hatched, 40 fledged.

daltonmissouri wrote:
Sat May 18, 2019 8:24 am

We have tree swallows nesting in bluebird boxes every year.
Apparently they’re not very good at picking the right size box, and will nest in almost anything with a hole even if it’s far too small. Some or most of the nestlings may not make it if the box isn’t large enough, so it’s best to make sure anything they might pick is the right size for them.

Here is some excellent information of TS boxes... http://www.treeswallowprojects.com/buildbox.html
FarmerHarv
Posts: 74
Joined: Fri Jul 06, 2018 1:18 pm
Location: West Central Saskatchewan
Martin Colony History: 2018 - First house up in late June, lots of visitors brought over by “Percy”, a very enthusiastic SY male.
2019 - 10 nests, 51 eggs, 41 hatched, 40 fledged.

Fuzzmeister wrote:
Sat May 18, 2019 10:17 am
They actually are a very pretty bird and similar to a purple Martin but I live in a small town and I have 2 purple Martin houses up that are now full of pairs of martins, I don’t think it’s a good idea to put up more bird houses for fear that my neighbors are already thinking I am bird crazy. FarmerHarv what is the proper size house for tree swallows? Thanks for all the info on tree swallows guys I appreciate it cheers.
Heh, yeah it’s easy to get sideways looks from people all right. Between the Martin and tree swallow/bluebird housing, sparrow traps, little ponds, bird baths, feeders, and orange halves scattered all over the yard here I do get quite a few questions and the occasional head shake.

The current conventional wisdom on TS box size is 6.5”x5.5” interior. Tons of info on the little ME-163 Komet is at http://www.treeswallowprojects.com/index.html
Chris B
Posts: 379
Joined: Sun Jun 01, 2014 4:10 pm
Location: AL/Toney

FarmerHarv wrote:
Sat May 18, 2019 1:32 pm
daltonmissouri wrote:
Sat May 18, 2019 8:24 am

We have tree swallows nesting in bluebird boxes every year.
Apparently they’re not very good at picking the right size box, and will nest in almost anything with a hole even if it’s far too small. Some or most of the nestlings may not make it if the box isn’t large enough, so it’s best to make sure anything they might pick is the right size for them.

Here is some excellent information of TS boxes... http://www.treeswallowprojects.com/buildbox.html
IMO a TS is a pretty big little burd but so is the BB. I have TS is maybe 10 cavities I have for BBs and the boxes are probbly too small. What does work OK is hanging a smaller gourd with a 1 1/2" hole hanging from a shelf bracket. At least the cavity size can be chosen if you do not make your own boxes.

TS and PM and BS all get along just fine in the same yard. Mine do.
2014 8 gourds, 3 pairs nested. Ended w/ 24 total
2015 24 gourds, 22 nests. Lotsa birds!
2016 24 gourds and good activity.
2017 32 SREH gourds. Great activity.
2018 40 SREH gourds. Good finish despite big storm damage. No more dangling gourds.
2019 56+ SREH gourds, all on 3/8 rods. Birds did very well.
2020 56 SREH gourds.
LoisG
Posts: 11
Joined: Sat Apr 29, 2017 8:30 pm
Location: Warwick,RI
Martin Colony History: New - just set out gourds today, May 4th, 2017. We had several purple Martins looking over the place this morning then left in the afternoon. Why?

Hello have been trying for four years to establish a colony. Tree swallows are driving me crazy. I have a small yard and my empty colony is located on my boat dock, about 40 ft from our house. Last year I had three sub adult males who came every day and were attracted to the colony and my recording of the dawn song. This year I had one loan male adult, who I presumed was one of my sub adults from last year. He has come to the colony every morning, this yr, and sits all by his lonesome self for the last two weeks. Intermittently, I have about three peers of tree swallows who also hang out here. Last year I tried moving a gourd over to my next-door neighbors yard because a pasty Treeswallow wouldn’t leave the empty colony alone. I say pesto I do like them as well but there is such a small dominant bird and aunderstand they will chase Martins away. In any case last year I moved the gourd that they were nesting in to my next-door neighbors dock in their yard. It was about 100 feet from the colony but the pest tree swallow kept returning to the colony and chasing away the three sub adult males that would come to the colony every morning. The three sub adult males must of got tired of the pest tree swallow so they in turn went to the single gourd, with the tree swallow, in my neighbors yard and tore up their nest. This is why this year I’m reluctant to try anything I’m very depressed. Please help if you can
GFB
Posts: 66
Joined: Sun Dec 23, 2018 5:05 pm
Location: Ontario NY
Martin Colony History: I Started my first colony with my father in the late 1960's. Started building custom vinyl Martin houses last year 2018 and was successful with 10 birds fledged and it looks like several dozen birds are hanging around. Time to expand.
2018: 1 T-14 and 6 gourds. Fledged 10
2019: 2 T-14's and 6 gourds. Fledged 70
2020: 2 T-14's and 6 gourds. Fledged 111
2021: 2 T-14's and 18 gourds Fledged 186
2022: 2 T-14's and 18 gourds Fledged 208

Tree swallows can be a pain in the neck when trying to establish a colony but just today I was outside working and was getting tore up by black flies thankfully there were dozens of tree swallows annihilating them close to the ground with my Martins up higher after probably something else. I thinking of making housing next year just for them.
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