Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
MacLean
1965
Journal
period observe carefully notes location.
At conclusion of 5 x 30 sec. observation
observer characterizes habitat for each
observation, and records. If bird
10 ft.
flies before 5 are completed, observe
characterizes habitat for each complete
observation, then begins another series
on same bird or moves to another bird.
Maximum of 5 series (series = set of
observations ending with 5 x 30 sec. period or
flight) for any one bird. If bird flies
during 30 sec. observation period record.
(noting time observed) if over 15 sec; discard
if under 15 sec..
This method will allow quantified
observation of feeding technique, which
was never achieved last year. I think
it will be an improvement, although only
application can tell for sure.
Definition of habitat will be essentially
as last year, with slight changes, and new
symbols in recording. This is to be worked
out maƱana, as none of us could stand
more bickering over this whole thing now.
Barrow, Alaska
14 June
Morning at work, mostly on the
radio for plane going to t-3, then took
off in afternoon for N. Wohlslag