What's new
New posts
New media
New media comments
New profile posts
New review items
Latest activity
Forums
New posts
Search forums
Gallery
New media
New comments
Search media
Reviews
New items
Latest content
Latest reviews
Latest questions
Brands
Search reviews
Opus
Birds & Bird Song
Locations
Resources
Contribute
Recent changes
Blogs
Members
Current visitors
New profile posts
Search profile posts
ZEISS
ZEISS Nature Observation
The Most Important Optical Parameters
Innovative Technologies
Conservation Projects
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
BirdForum is the net's largest birding community dedicated to wild birds and birding, and is
absolutely FREE
!
Register for an account
to take part in lively discussions in the forum, post your pictures in the gallery and more.
Forums
Birding
Migration
Waxwings anybody?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Capercaillie71" data-source="post: 1330099" data-attributes="member: 32437"><p>I think you are right too. I've had a look at maximum winter flock sizes reported in the North East Scotland Bird Report dating back to 1974. Obviously these are affected by food availability as well as the numbers of birds present, but they do show a marked upward pattern:</p><p></p><p>From 1974/75 to 1987/88, there were no flocks of more than 50 reported and the maximum flock size averaged about 25.</p><p></p><p>From 1988/89 to 1998/99, the maximum flock size averaged about 70. The biggest flock during that period was 300 in 1990/91, but there were also three winters when the largest flocks were single figures.</p><p></p><p>Since 1999/2000 the maximum flock size has averaged over 350, and hasn't been less than 38. The biggest flock being 1800 in 2004/05 .</p></blockquote><p></p>
[QUOTE="Capercaillie71, post: 1330099, member: 32437"] I think you are right too. I've had a look at maximum winter flock sizes reported in the North East Scotland Bird Report dating back to 1974. Obviously these are affected by food availability as well as the numbers of birds present, but they do show a marked upward pattern: From 1974/75 to 1987/88, there were no flocks of more than 50 reported and the maximum flock size averaged about 25. From 1988/89 to 1998/99, the maximum flock size averaged about 70. The biggest flock during that period was 300 in 1990/91, but there were also three winters when the largest flocks were single figures. Since 1999/2000 the maximum flock size has averaged over 350, and hasn't been less than 38. The biggest flock being 1800 in 2004/05 . [/QUOTE]
Insert quotes...
Verification
Post reply
Forums
Birding
Migration
Waxwings anybody?
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more...
Top