Our main target areas for the day were the 9 mile bank and the 30 mile bank. The Grande is a slow boat, so we needed all of the 12 hours allotted for this trip. It was overcast for most of the morning, but then cleared and was a lovely, sunny day for the rest of the afternoon.
The highlight of the day was 2 or 3 huge rafts of black and least storm-petrels. The top photo shows one of the large groups in a feeding frenzy (click on it to enlarge). The bottom photo is a close up of 3 black storm-petrels pattering on the water plus what appears to be a least flying to their right. The total number of storm-petrels was estimated at 10,000+.
We were all carefully scanning thru the mass of storm-petrels because a week earlier a trip had found these same rafts of birds, and mixed in were 2 white-rumped SP's. After getting back to the dock, the photos taken were studied and 1 of the white-rumped birds was determined to be a wedge-rumped storm-petrel, which is incredibly rare in US waters. After about 30 minutes of circling the rafts a white-rumped SP flew in close to the boat, but photos showed that it was a leach's storm-petrel.
The rest of the day was fairly quiet birdwise. We did see all 3 jaeger species; common, forster's, elegant and royal terns; sabine's, western, heerman's and california gulls; pelagic, double-crested and brandt's cormorants; a few cassin's and 1 rhinocerous auklet; and lots of pacific white-sided dolphins. My hoped for target birds were the wedge-rumped, a blue-footed booby or a craveri's murrelet, but none made an appearance today.
28 more new birds were seen today for the week, and the black-vented shearwater raised the YTD to 685. I am staying another nite here in San Diego before making the 8 hour drive up to the San Francisco Bay area tomorrow to be ready to go out on another pelagic trip scheduled for Monday. I also want to congratulate Bob Ake, the birder from VA who is doing a full ABA big year. Right now he is up in Barrow, AK where he picked up 3 more new birds for the year, and he was on the boat last week and saw the wedge-rumped SP. These 4 birds raise his YTD up to 710, plus he has not yet added the 2 birds from the split earlier this year, so he is really at 712. Way to go Bob! Stay tuned!
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