Subject: [Tweeters] Hummer activity on Oak Bay. 2005 to 2007
Date: Jan 28 12:17:36 2008
From: Dave Nuttall - dave_nuttall at yahoo.com


Here is a link to a jpg image of a chart showing sugar consumption (in grams/day) from the feeders at our house on the south side of Oak Bay (near Port Ludlow) over the last three years:

http://www.box.net/shared/239plircw8

A few observations:

The bulk of the population are Rufus. We had no Anna's in 2005, 3 possible Anna's in 2006, and several definite sightings in 2007 (including one in January). The peak Rufus count is in the 900 to 1100 range.

The summer residence period seems to be steadily broadening, but the population peaks seem to be variable (I am assuming that the birds take a fixed proportion of their food requirements from the feeders each day).

Dave Nuttall
Oak Bay, WA
djhn42-tweet at yahoo.com