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Our swallows fledged this week but before they left I was able to spend =
some time watching the action and taking blurry photos. I noticed a =
third adult swallow that wasn't carrying food would visit the box and =
hang on the outside looking in. There would be a brief altercation when =
one of the nesting birds returned. This third bird looked like a female =
but was slightly more colourful our nesting female. On at least two =
occasions she entered the box and remained in there while the nesting =
female entered a removed a fecal sac. Once while she was inside I saw =
what I presume was a male come to the box without food and peer in. I'm =
not sure if it was the male from our nesting pair or a fourth adult. I =
have often seen "extra" adults around at nesting time but this was the =
first time I have actually watched the interactions. I assume in this =
case it could be unpaired individuals or birds from failed nesting =
attempts that still have some instinct to search out a nest site. =
However that doesn't explain why they didn't just move along when they =
found the site occupied.
Kevin Lantz
Front Centre NS
From: Laviolette, Lance=20
Sent: Monday, July 04, 2016 5:15 PM
To: naturens@chebucto.ns.ca=20
Subject: RE: [NatureNS] Tree swallow behavior question
Hi Ron,
=20
In Nova Scotia a second round of nesting would be very rare if it =
occurred. Renesting is possible but I=E2=80=99d think it would be late =
in the season for that to occur also. If the behaviour you are =
witnessing were within a few days of the young leaving the box =
I=E2=80=99d say it was them returning to roost but with them leaving 11 =
days ago they should have been long gone.=20
=20
Regarding your two boxes, if they are fairly close together then it is =
likely that they are both being defended by a single pair. One or both =
of this pair have probably nested in your yard each year and prefer the =
one box and its location for some reason. If they have successfully =
fledged young each year I guess there is no reason to change the =
selection.=20
=20
On my farm the first box occupied (I have about 30) has been the same =
one for almost 20 years. It appears to me to be in a similar =
=E2=80=98situation=E2=80=99 to others but since I don=E2=80=99t speak =
Tree Swallow they haven=E2=80=99t been able to tell me why it is the box =
of choice.
=20
Let us know if they stick around and show signs of nesting.
=20
All the best,
=20
Lance
=20
Lance Laviolette
Glen Robertson, Ontario
=20
=20
=20
From: naturens-owner@chebucto.ns.ca =
[mailto:naturens-owner@chebucto.ns.ca] On Behalf Of Ron Wilson
Sent: Monday, July 04, 2016 3:18 PM
To: Nature NS <naturens@chebucto.ns.ca>
Subject: EXTERNAL: [NatureNS] Tree swallow behavior question
=20
I have two Tree Swallow nest boxes but the swallows have only used the =
one same box each of the last three years.
=20
This years young left the box 11 days ago but each day now I have a =
group of approx 6 Tree Swallows returning two or three times to the yard =
and both boxes - never going in but hanging off the entry holes.
=20
Can anyone explain this behavior ?=20
They don't do a second round of nesting do they?
=20
Ron Wilson
Somerset NS
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mso-bidi-language: ar-sa'><FONT=20
face=3D"Times New Roman"><FONT style=3D"FONT-SIZE: 12pt">Our swallows =
fledged this=20
week but before they left I was able to spend some time watching the =
action and=20
taking blurry photos. I noticed a third adult swallow that wasn't =
carrying food=20
would visit the box and hang on the outside looking in. There would be a =
brief=20
altercation when one of the nesting birds returned. This third bird =
looked like=20
a female but was slightly more colourful our nesting female. On at least =
two=20
occasions she entered the box and remained in there while the nesting =
female=20
entered a removed a fecal sac. Once while she was inside I saw what I =
presume=20
was a male come to the box without food and peer in. I'm not sure if it =
was the=20
male from our nesting pair or a fourth adult. I have often seen "extra" =
adults=20
around at nesting time but this was the first time I have actually =
watched the=20
interactions. I assume in this case it could be unpaired individuals or =
birds=20
from failed nesting attempts that still have some instinct to search out =
a nest=20
site. However that doesn't explain why they didn't just move along when =
they=20
found the site occupied.</FONT></FONT></SPAN></DIV>
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