aba events
Nikon Monarch 7

    #ABArare – probable Nazca Booby – California

    While on a Harbor Breeze Tours whale-watching trip out of Long Beach on June 27, Tim Hammond found and photographed what was initially identified as a Masked Booby about four miles off of Palos Verdes in Los Angeles County waters. Subsequent study of the photos suggest that the bird looks good for Nazca Booby, which would be a potential first ABA Area record.

    Photo by Tim Hammond, used with permission

    Photo by Tim Hammond/Harbor Breeze Tours, used with permission

    More photos by Tim Hammond available here.

    Subsequent trips to look for the bird in the vicinity of the initial sighting have been thus far unsuccessful, but there are reportedly many Masked Boobies in the area so it may still be in the area.

    Nazca Booby was formerly considered conspecific with the very similar Masked Booby, but differs from the latter in a couple notable ways. Adult Nazca Boobies tend to have a orangy-pink tone to the bill, whereas Masked Booby is more greenish-yellow. Immature birds are more difficult, and there are a handful of young boobies seen in California over the years about which birders were unable to make the distinction.

    Nazca Booby has been conclusively reported in the ABA Area one time before, an immature individual which rode a boat into San Diego county from adjacent Mexican waters in 2001. While ABA rules do not preclude ship-assistance as a valid means of arriving to the ABA Area, the bird was not accepted by the California Bird Records Committee and therefore, never considered by the ABA Checklist Committee.

    Nazca Booby breeds primarily on the Galapagos Islands but also as far north as the Revillagigedo Islands SSE of Baja California, Mexico (the largest of which is Socorro). Boobies are strong flyers and prone to dispersal, so the species may be more regular in ABA Area waters than the records would suggest, but because of the aforementioned identification difficulties it goes unnoticed. Birders have noted that the strong El Niño predicted this summer and currently forming, may create conditions conducive to movements of southerly birds towards the ABA Area, as evidenced not only by this bird, but an early influx of Craveri’s Murrelets and Masked Boobies in southern California waters.

    The following two tabs change content below.
    Nate Swick

    Nate Swick

    Nate Swick is the editor of the American Birding Association Blog. A long-time member of the bird blogosphere, Nate has been writing about birds and birding at The Drinking Bird since 2007, but can also be found writing regularly at 10,000 Birds. In the non-digital world, he's an environmental educator and interpretive naturalist. Nate lives in Greensboro, North Carolina, with his wife, Danielle, and two young children, who are not yet aware that they are being groomed to be birders.
    Nate Swick

    Latest posts by Nate Swick (see all)

    Birders know well that the healthiest, most dynamic choruses contain many different voices. The birding community encompasses a wide variety of interests, talents, and convictions. All are welcome.
    If you like birding, we want to hear from you.
    Read More »

    Recent Comments

    Categories

    Authors

    Archives

    Enter your email address to subscribe to this blog and receive notifications of new posts by email.

    • Book Review: How To Do Ecology October 21, 2014 5:37
      I’ve often heard that there are two career options for young birders: go into ecology or biology and spend your working hours birding, or go into a more profitable field and use your spare time to bird. […]
    • Open Mic: 2014 Camp Avocet–an intern’s perspective October 13, 2014 5:38
      I don’t think there is any doubt in anyone’s mind that Camp Avocet was totally, undeniably awesome this year, so I won’t spend too long telling you all that. In mid-August 2014, a committed staff and a crew of very enthusiastic and almost unbelievably skilled campers assembled in Lewes, in southern Delaware, for the second […]
    • Open Mic: Birding Isleta Grande October 6, 2014 5:20
      There is a very good spot for birding in Central Veracruz that has been unnoticed by birders. Isleta Grande is a small village located a half hour from Xalapa. […]

    Follow ABA on Twitter

    Nature Blog Network