At 02:23 PM 6/9/96 -0700, Kelly wrote:
....... I now have a female incubating in one of the chimney boxes and a
female incubating under the eaves. I measured the horizontal distance and
it is 23 feet. The peak of the roof
>separates the two locations so there is a visual barrier as well as the
distance separation.
>
I think (from observation of our tree swallows) that line-of-sight is a big
influencing factor. I notice our pair gets very upset when another tree
swallow swings by the area of their box. The female is brooding right now
and sets with her head sticking out of the hole.

By the way, there seems to be a real shortage of suitable nesting sites in
our area and I've noticed several who missed out on our box checking out
some truly unsuitable boxes. Are swallows like Acorn Woodpeckers? That is,
they simply won't nest if there is no appropriate site available?

Thanks,

Peggi



Peggi Rodgers
Oregon Research Institute
Eugene, OR
peggir at ori.org
prodgers at efn.org
"A bird does not sing because it has an
answer, It sings because it has a song"