- Mon, 31 Mar 2008 -- In the last week I have visited all of the locations in Lake and Mendocino Counties where I know Tricolored Blackbirds have nested inMessage 1 of 9 , Apr 1, 2008View SourceMon, 31 Mar 2008 -- In the last week I have visited all of the locations in
Lake and Mendocino Counties where I know Tricolored Blackbirds have nested
in recent years, and I have discovered a new colony on Highland Springs
Road. Tricolors are present at most of these areas and song, display, nest
building, and copulation are under way already. Here's a summary of what
I've found. All of the numbers estimates are preliminary and conservative.
The best places for watching or photographing are probably the Adobe Creek
and Highland Springs Road sites:
MacGuire's Pond/Camp 19 on Route 20: At least 9 males displaying
Wilson's Pond, Burris Lane, Potter Valley: At least 35 males.
Christmas Star Vineyard, Potter Valley: None present. Blackberry hedge
where they nested once has been nuked.
Fetzer's Valley Oak Center pond: Males present, singing, displaying, no
number estimate yet.
Lyons Creek Wetland: None present.
Adobe Creek Reservoir: At least 34 males in the NW corner, and another
group of at least 21 males on the east side. Nest-building, copulation. 2
Yellow-headed Blackbirds on territory in the NE corner.
6495 Highland Springs Road: At least 95 males displaying in a blackberry
patch right along the road near the driveway. Nest building, copulation.
Foraging in the vineyards to the east.
I am going to be the coordinator for Mendocino and Lake Counties of
the statewide Tricolored Blackbird survey this spring. If you have any
observations of tricolors in Lake and Mendocino between now and July please
contact me - particularly nesting information.
Potter Valley, MEN, CA
- Mon, 16 Feb 2009 -- I went out this afternoon and poked around Potter Valley in the car in the drizzle. The most interesting finds were TRICOLORED BLACKBIRDSMessage 2 of 9 , Feb 16, 2009View SourceMon, 16 Feb 2009 -- I went out this afternoon and poked around Potter Valley
in the car in the drizzle. The most interesting finds were TRICOLORED
BLACKBIRDS in mixed blackbird flocks in four different locations. They
totaled up to 14 males and a bunch of possible females. These are my first
Potter sightings for the month of February. At the end of the last breeding
season I estimated that there might be 4500 Mendo/Lake tricolors out there,
but these are the first I've seen since they disappeared from the breeding
colonies in early July. I also found three MERLINS all of the taiga type.
Potter Valley, CA
- Wed, 08 Apr 2009 -- TRICOLORED BLACKBIRDS are back in numbers at the location on East Road in Potter Valley where the bred last year. Today there was aMessage 3 of 9 , Apr 9, 2009View SourceWed, 08 Apr 2009 -- TRICOLORED BLACKBIRDS are back in numbers at the
location on East Road in Potter Valley where the bred last year. Today
there was a minimum of 240 birds in the blackberry hedge on the south side
of the pond at mailbox 10707 East Road, and nest building is underway.
There are also tricolors present near the two other locations where they
have nested in Potter, but I have not been able to determine their status
Potter Valley, MEN, CA
- Thu, 14 Apr 2011 -- TRICOLORED BLACKBIRDS have been present at the breeding location on Eastside Road in Potter Valley since April 1st. They can be observedMessage 4 of 9 , Apr 14, 2011View SourceThu, 14 Apr 2011 -- TRICOLORED BLACKBIRDS have been present at the breeding
location on Eastside Road in Potter Valley since April 1st. They can be
observed and photographed easily from the car window at close range. There
has been some clearing of the blackberries in the heart of the breeding area
over the winter, and the number of birds appears to be lower than recent
The location is beside a pond on the west side of Eastside Road. There
is a pullout by mailbox 10707 on the west side of the road. Please try not
to block access to the mailboxes.
Friday, Saturday, and Sunday (15th, 16th, 17th) is the triennial
Statewide Tricolored Blackbird Survey. I will be visiting all the
historical breeding sites in Lake and Mendocino counties and scouting other
areas of suitable habitat where they have never been found. I ask that
people report all sightings of Tricolors in this period to me at the address
below and particularly any evidence of nesting. Males doing the
"bag-o'-cats" chorusing is good presumptive evidence of nearby nesting.
Some nesting sites in recent years:
McGuire's Pond on Route 20 west of Willits
"Wilson's Pond" (private property), Burris Lane, Potter Valley
Armstrong's Pasture (private property), Burris Lane, Potter Valley
Pond near 10707 Eastside Road, Potter Valley
Christmas Star Vineyard Pond, Westside Road, Potter Valley
Fetzer Valley Oaks(formerly) Pond (private property), Hopland
Highland Springs Road north of Bell Hill Road
Adobe Creek Reservoir
Potter Valley, MEN, CA