We made another trip to the Alviso Marina (once San Jose’s port and water connection to San Francisco — see “Birds in the Bay” from April 2015) but it was a hazy day, not particularly good for landscape photos. So, of course we concentrated on the birds foraging along the shore of the salt ponds there.
A pair of American Avocets foraged along the shore for microscopic crustaceans floating in the water.
You can just barely see the tiny little invertebrate creature the avocet is picking up in the shallows along the shore. They seem to spot something swimming ahead of them, and then dash up and grab it with the tip of that upturned bill.
oops, missed it…must be challenge finding anything in this murky water
Common Yellowthroats were singing vigorously in the cattails and low shrubs. Every now and then one would pop up to check us out.
We found male Marsh Wrens singing in the cattails about every 100 yards along the levy of the salt ponds. They were extremely shy and would only give me about a 1 second look before vanishing into the low vegetation.
There are several large salt ponds at Alviso Marina, left over from the salt mining operation that closed here years ago. The passageway to San Francisco Bay filled in long ago, leaving just these ponds whose levels go up and down with the tides. This is a favored stop-over for migratory shorebirds, but they left a month or two ago.
Of course, you can always find Laughing Gulls here, but I doubt they are finding any fish in these very salty waters.