Date: 3/20/17 8:33 pm
From: Frances Oliver <hummer52...> [countybirders] <countybirders-noreply...>
Subject: [CB] American Black Duck @ Tracy WTP
Posting this for David Yee.

Dear Birders:

Yesterday, 19 March, there was an interesting duck at the Tracy sewage ponds. I was able to follow up on it this morning and was joined by Frances Oliver. It appears to be an American Black Duck with no signs of Mallard in it. However, on occasion it did appear to be larger than neighboring Mallards, which always leads one to suspect it has captive origins. Even without this caveat, natural occurrence will be an issue with any Black Duck in CA, so chase at your own risk.

The Tracy ponds are located at the intersection of MacArthur and Arbor. MacArthur is an exit right off of Hwy 205. The bird most frequently hangs out on the big north/south levee that divides the ponds, and has been most frequently at the north end, so a distance from Arbor Rd. At these times it's easiest to observe the bird either from the extreme ne corner of the complex where there is a small area to stand, or to walk along the west side of the complex on a service road along a small canal. Do not drive onto this service road at anytime, or into the complex at any time, even if the gates are open. Do not enter on foot into the gated complex at any time, birders are not allowed in. One can view from outside the fenced area easily, and birders can access the service road on the west side off the complex. Do be aware that there is an issue with the homeless along this service road.

Good Birding,
David Yee

Posted by: Frances Oliver <hummer52...>


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