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Rare Bird Sightings:Documentation Required Accuracy Is Crucial for · 11 H • • ~ -:..:...·:.______A Y S Ow up M Wmter ~ · CBC Credibility Such As Eurasian ~~ ~

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Rare Bird Sightings:Documentation Required Accuracy Is Crucial for · 11 H • • ~ -:..:...·:.______A Y S Ow up M Wmter ~ · CBC Credibility Such As Eurasian ~~ ~ The Newsletter of the Santa Clara Audubon Society December 2001 Rare Bird Sightings:Documentation Required Accuracy is crucial for · 11 h • • ~ -:..:...·:.______ __________ a y s ow up m wmter ~ · CBC credibility such as Eurasian ~~ ~-:.. 'ri .-------~ ~ -...~ ....., by Ann Verdi Wigeon, Ferruginous ,(: ~~~~ H k d h ( - .. ,,..--;?<~~~:>~~ San Jose CBC Compiler aw , an W ite- :::;;.,.-~. & ~;::.,_,~- throated Sparrow. ~ "'" <~-r;; While the censusing of our familiar wintering birds is the ~ ,.~,._- ,,~ (.,'< Other write-up candi- --....:.-11...':J:. '¼ c-'¼ ~"e--.,,,, core reason for Christmas Bird Counts (CBC's), the documen- 1-,,~4.,_,,,,_ >::i..,, tation of rare or unusual birds seen is also a very important dates might include , ~ ~~u~ aspect of these annual events. species common in · · -~ David McIntyre's sketch of the nearby areas, but not in Filling out a Rare Bird Form in full detail can be bothersome, Black-backed Wagtail had enough but a careful description of your observation has great rel­ your local CBC circle; detail for the committees who review the evance . I have often thought to myself"! hope I don't see a rare e.g. Common Loon, CBC reports. Be sure to answer all the questions on the form as well. bird, because then I'll have to do one of those write-ups and then Snow Goose, and Surf they're going to ask me questions about it" when I'm doing my Scoter are considered unusual for the San Jose CBC. Birds CBC. commonly found during breeding season but absent in winter, Well, maybe you will be lucky enough to spot an unusual like most warblers, vireos, gnatcatchers, orioles, et al also bird that needs to be written up and maybe they will ask you require documentation . - questions about it - and that's OK. First of all, there's the Our local CBC' s have rare bird committees made up of top special thrill of discovering a unique bird ; then your sighting local birders who review rare bird write-ups before they are needs to be backed up by careful description of the bird, its submitted to CBC Regional Editors. The original reports and behavior, its vocalization (if any), when and where it was seen, sketches are then sent to a national database for final review. your distance from the bird, the lighting, your optical equip­ Occasionally a rare bird sighting must be rejected due to poor ment, other observers, and, if possible, a sketch of the bird made documentation. This makes for a difficult decision, since the during the observation. You don 't need to be an artist (few of us observer (you) and compiler (us) may strongly believe the are!) but your sketch should show the particular marks and veracity of a sighting, but without a convincing write-up or features of the bird that differentiate it from a more common or sketch, the national editors are likely to reject the report. expected species. (See Bonnie Bedford -White's piece on sketch­ Because of the careful scrutiny of our local rare bird commit­ ing birds on Page 7.) tees, our local CBC's have consistently ranked among the top What is considered a "rare bird"? Well, certainly the Black­ in the state for accuracy of reporting. Our good documentation backed Wagtail found in Alviso last winter was a rara avis, but gives credibility not only to our rare bird reports but to our other birds requiring write-ups include species that occasion- CBC' s as a whole, and we can all be very proud of that. Field Notes--------------Page 6 December is Christmas Bird Count Month! Sketch it!-----------------Page 7 For information (maps, compilers, contact info) on all CBC circles--------------Page 9 four local CBC's-San Jose, Palo Alto, Mt. Hamilton Summary of and Calero/Morgan.Hill-see Pages 8 - 9. Experienced conse-rvationwork-----Page JO and novice birders alike are needed! Pollution patrol--------Page 11 TheAvocet 1 December Field Trips Please carpool if possible; bring binocu­ lars, field guides, Laye red clothing. Saturday Jan. 5, 8:00 AM Wednesday Jan. 9, 9:00 AM LO = Lunch optional Post CBC Rarities Chase Ed Levin County Park RC= Heavy rain cancels Full day. Leader: John Mariani (408) Half day . Leader: Harriet Gerson (408) 997-2066. Kick off the new year with 252-6244. Take Hwy 237 east to Saturday Dec. 1, 8:30 AM some coastal vagrant chasing . Bring a Calaveras Rd. in Milpitas, go approx . 2 Coyote Point full tank of gas, lunch, and field guides as miles past 1-680 to just past golf course Half day. Leader : Bob Reiling (408) we attempt to track down some of the entrance; park is on right across from 253-7527. From Hwy 101 north in San unusual birds seen on Christmas Bird school. (Do not turn left on Downing Mateo take Peninsula Ave exit then im­ Counts from Monterey to Santa Cruz. Rd .) LO, RC mediate right onto frontage road . Take Meet at the ranger's kiosk on Jetty Rd ., first left into park, then second left after just north of Moss Landing harbor on Plan Ahead: entrance kiosk to lower parking lot of Hwy 1. We'll either travel south to Jan.12---Panoche Valley Coyote Point Junior Museum . RC Monterey or north to Santa Cruz depend­ ing on the location of the rarities . RC Saturday Dec. 8, 8:00 AM Sunnyvale Water Treatment Plant Beginning Birding Class in Sunday Jan. 6, 8:00 AM Palo Alto Half day. Leader : TBA Questions call Charleston Slough (408) 253-7527 . From Hwy 101 take Palo Alto Adult School's Beginning Half day. Leader: Bob Reiling (408)253- Birdwatching class with instructor Mat­ Hwy 237 east, exit North on Caribbean 7527 Meet at Terminal Way at the end of thew Dodder will begin again on January Dr., turn right on Borregas Ave then left San Antonio Rd . north off Hwy 101 in 7. Enrollment begins Monday, Novem­ to parking area. A great place to study Mountain View. Birding will be geared ber 26. Call the school for details at (650) ducks; scopes are highly recommended. toward the beginning birder but all are A fairly easy but long walk. RC encouraged to attend. Don't forget to 329-3752 or visit the the instructor's bring your spotting scope. website : www .birdguy .net. Sunday Dec. 9, 9:00 AM Charleston Slough Half day. Leader : Phyllis Browning (650) 494-6360. Meet at Terminal Way at end of San Antonio Rd . northoffHwy 101 in Mt. View. As always, all are invited but birding will be geared toward the begin­ ning birder . Bring a spotting scope if you "Birding on the Bay" have one. Young Audubon Boat Trip Wednesday Dec.12, 9:00 AM Sunday, January 20 Campbell Percolation Ponds & Los Tourist Wharf, Monterey Bay Gatos Creek 9:30-12:00 noon Half day. Leader: John Arnold (650) 948-4250 . From 1-280 (go south) or Hwy Join the Young Audubon group for a boat trip on Monterey Bay. The 85 (go north) on Winchester Blvd, then trip is scheduled during the peak of the Gray Whale's southern migration east on Hacienda, left on Dell, and right and may also yield views of sea otters, sea lions, porpoises, and of course, into park . Possible Hooded Merganser. sea birds! The cost for this 2-hour tour is only $15 per person. This trip is Entrance fee; easy 2-mile walk . LO, RC first and foremost for children and their parents. Adults without children will be placed on a waiting list and are welcome to join us, depending on availability. Space is limited, so contact the SCVAS office at (408) 252-3747 to reserve your space today! Once payment is received, SCVAS will send out detailed information packets for the trip. Dress for cold and rain. Rainy weather does NOT cancel this trip. Because the boat is pre-paid, no refunds are available . TheAvocet 2 Calendar Wednesday Dec. 5, 7 :30 PM Bay Area Bird Photographers pre­ sents professional photographer and zo­ ologist Roy Toft of El Granada with wildlife images of Madagascar. Lucy Evans Baylands Interpretive Center, E. Embarcadero Rd. Palo Alto. Tuesday Dec. 11, 9:30 AM Eve Case Bird Discussion Group Saturday, December 8 will meet at the home of Pat and Jean Dubois, l 7150Buena VistaAve,LosGatos Holiday Open House 408-395-4264 Topic: Tundra Swan. SCVAS Nature Shop Saturday Jan. 12, 9:00 AM McClellan Ranch Park, Cupertino Volunteer Social at McClellan Discounts!! Ranch Park See Jennifer's Volunteer Ventures col­ Holiday refreshments!! umn on Page 4 for details. Browse our Nature Shop for holiday gifts Lean1 more about local Audubon programs Wednesday Jan.17, 7:30 PM General meeting, Palo Alto and volunteer opportunities "Golden Eagles" with biologist Craig Himmelwright. - Many warm thanks to all those who helped SCVAS would like to express apprecia­ tion for donations received from the make Wildlife Education Day a huge success! following individuals in memory of their friends and relatives : Event Sponsors In memory of: Doris E. Brannan Ellend Wenk Deep Cliff Golf Course • Stevens Creek Software Marjorie A. Collins Pat O'Neill • Councilmember Richard Lowenthal • Jim and Gen Collins Nancy, Nancy Anne and Nicky Bayda Raffle and Poster Contest Prize Donors: In memory of: Richard L. Cox Wild Bird Center of Los Gatos • Naturals from the Earth Nancy and Robert Sorensen Sandra and Ron Fischer SCVAS Nature Shop • Hicklebee's Books Ron and Linda Edwards Klutz Books • Sakamoto Plants Robert and Lori Edwards CA Integrated Waste • Management Board In memory of: Neal Royer PatDeWhitt Special thanks to SCVAS volunteers In memory of: Margaret P"ryor for their invaluable support! Mary Louise Canfield TheAvocet 3 Volunteer Ventures Techno-volunteers Come Through­ by Jennifer Peritz Programs Coordinator New Toys for Staff This month's column must begin with a humongous THANK YOU to all SCVAS' technological capabilities of the fabulous volunteers who helped to make our 10th Annual Wildlife have improved greatly over the past year, Education Day such a success! With upward of 450 guests, 22 local environ­ and we'd like to thank the many -people mental organizations, two presentations, and numerous hands-on activities, who have helped.
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