[NatureNS] Cliff Swallow barn nests

From: "susann myers" <myerss@eastlink.ca>
To: naturens@chebucto.ns.ca
Date: Tue, 11 Jun 2019 15:20:48 -0300
References: <88ACC5FF-390D-499E-9C6E-65836DEB559C@gmail.com>
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Hi, Nancy.

Cliff Swallows nest communally in terms of building nests near one another in a colony, but one pair builds and occupies each mud nest. There is a lot of competition over nest sites, however, and they will try to take over a nest from another pair of Cliff Swallows. There is also apparently a fair bit of extra-pair copulation that goes on, including males entering a nest that is not their own to copulate with the female inside the nest. Also, brood parasitism is apparently common - females lay eggs in the nests of other pairs, or transfer eggs from their own nest to another in their bills. All in all, there tends to be quite a bit of squabbling going on around Cliff Swallow nests!

Cheers,
Susann
<signaturebeforequotedtext></signaturebeforequotedtext>
 
On 06/11/19 02:29 PM, NancyDowd  <nancypdowd@gmail.com> wrote: 
> 
> These Cliff Swallows are nesting in a barn in E Dalhousie, Kings. This photo shows the nest and entrance with an adult looking out https://www.flickr.com/photos/150605880@N07/48044595918/in/dateposted/ The short video is confusing. Hard to tell who/how many is/are tending the nest. And seems there are more than a pair of adults involved. You can hear a nasty spat off-stage before one returns and enters. Anyone know if they nest communally within the large jugs? There was another jug one rafter over.
> https://www.flickr.com/photos/150605880@N07/48044607217/in/dateposted/
> Swallows are always fun to watch.
> 
> Nancy D
> 
<signatureafterquotedtext></signatureafterquotedtext>

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/are tending the nest=2E And seems there are more than a pair of adults =
involved=2E You can hear a nasty spat off-stage before one returns and e=
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