Subject: Two summers (Was fall migration)
Date: Jun 20 17:29:05 1995
From: Serge Le Huitouze - serge at cs.sfu.ca


Ted Becker writes:

> This statement brings to mind a question I've been wanting to ask. How
> many migrants fly south to another breeding season? Seems possible that
> a bird could fly back and forth across the equator and experience two
> springs and summers a year.

For sure many birds experience two summers, as you stated (e.g. Northern
Weatear, Barn Swallow), but I don't know of birds nesting twice a year.

Probably too demanding as far as energy is concerned.

And then, they also deserve to HAVE A BREAK :-)

--
--------------------------------------------------
A bird in the bush is better than two in the hand.

Serge Le Huitouze Intelligent Software Group
email: serge at cs.sfu.ca School of Computing Science
tel: (604) 291-5423 Simon Fraser University
fax: (604) 291-3045 Burnaby, B.C., V5A 1S6 CANADA