Date   
SDFO Meeting announcement: Translocation of the Rimatara Lory in the South Pacific: Success or Failure?

Justyn Stahl
 

SDFO Event – Tuesday, April 18, 2017 at 6:00 pm is our next meeting of San Diego Field Ornithologists.

Program: "Translocation of the Rimatara Lory in the South Pacific: Success or Failure?" by Bruce Rideout

The Pacific islands harbor some of the most interesting and beautiful birds in the world, but many species have gone extinct since the arrival of Polynesians and Europeans, due to hunting, habitat loss, and the impact of introduced predators and diseases. Those that have survived are among the most endangered birds in the world. In 2007, a small population of Rimatara Lories was translocated from the island of Rimatara in French Polynesia to Atiu in the Cook Islands in order to establish a second population as a hedge against extinction. In 2016, the original translocation team revisited Atiu to assess the success of this effort by conducting a survey of the translocated population and evaluating progress in the eradication effort for introduced mynahs. In this presentation, Bruce will provide a brief background for this conservation effort, present the conclusions of the program assessment, and share photos and recordings of the birds of Atiu.

Bruce Rideout is a pathologist and disease investigation specialist for the San Diego Zoo and San Diego Zoo Safari Park, where he is director of the Wildlife Disease Laboratories. He received his DVM and PhD degrees from the University of California, Davis, completed a pathology residency at the National Zoo in Washington DC, and is a diplomate of the American College of Veterinary Pathologists. He is also a Research Fellow of The Peregrine Fund and participates in a variety of conservation efforts, including recovery programs for California condors, Mojave Desert tortoises, and Hawaiian forest birds. His research focuses primarily on infectious diseases of wildlife, avian embryo pathology, and disease risk assessments for reintroduction programs. In his spare time, he studies the songs and calls of terrestrial birds, and helps to organize pelagic birding trips for Buena Vista Audubon.


Click here for Meeting Details and Map.

Meetings are open to the public, but SDFO membership is encouraged. Click here for SDFO membership instructions.

 

Justyn Stahl

San Diego Field Ornithologists

Vice President/Program Chair

Carlsbad Chestnut-sided Warbler continues Wed. April 12

Susan Smith
 

Tito's wintering Chestnut-sided Warbler  (T. Gonzales, first report Nov 26, 2016) was seen again today, near the given 6355 Corte del Aberto, Carlsbad,  address. It was first found at about 7:45 am, east of its previously reported location, in the row of eucalyptuses on the hill in back of the Del Abeto Commerce Center area, viewed from the paved area in back of a large building, where there are 1-2 dumpsters. This is on the east (right) side of Corte del Aberto. The bird has nearly  completed its molt into breeding plumage, is looking pretty spiffy, and singing pretty regularly.   

Susan Smith
Seiurus Biological  Consulting
Del Mar, CA 


WH Woodpecker - no

Nancy Christensen
 

My Ebird needs list today listed White-headed Woodpeckers at Fry Creek Campground on Palomar. For some reason, WH Woodpeckers are not listed as rare in that area even though it has been years since one was reported there. Too bad, as I wish I knew if the birds were identified by sound or sight. Anyway, I went up and spent some time this afternoon looking and listening. Sadly, I did not find any WH Woodpeckers. I did hear one rattle call that I could not identify, but never found the bird. Mountain Quail were around the campground calling from several directions.

I made a quick stop at Lake Henshaw and found 2 of the continuing Lewis's Woodpeckers.

Re: Chestnut-sided warbler 4/11

Jan Nordenberg <jnordenb@...>
 

Address is 6355 Corte Del Abeto, Carlsbad. 

Jan


On Apr 11, 2017, at 9:43 AM, Jan Nordenberg jnordenb@... [SanDiegoRegionBirding] <SanDiegoRegionBirding-noreply@...> wrote:

 

Is being seen and singing at southeast corner of the 3655 Building at 9:40.

Jan


Chestnut-sided warbler 4/11

Jan Nordenberg <jnordenb@...>
 

Is being seen and singing at southeast corner of the 3655 Building at 9:40.

Jan

results of 10 April san elijo monthly bird count

Robert Patton
 

Thanks to 18 participants for conducting the 10 Apr 2017 San Elijo Lagoon monthly bird count: Steve Brad (seawatch; Nature Center); Lea Squires (beach); Edie Berendsen, Barry Lindgren, Bradley Nussbaum, Elizabeth Venrick (Pole Rd); Kathy Aldern, Gail DeLalla, Jeff Clingan, Steve Perry, Heather Rubiles, Frimmel Smith (CBS= Rios to freeway); Jayne Lesley, Erica Mills, Bill Mittendorff (EBS = La Orilla to Sta Inez); Robert Patton (Beach, West Basin; EBNW = dike; EBNE = Escondido Cr; Cardiff Cove); Don Johnson, Denise Riddle (EBE = Stonebridge Mesa).  (I apologize if I missed anyone or for any misspellings).

 

Notable species included American bittern in flight NE of Sta Carina, common poorwill calling pre-dawn off Sta Carina, black-throated gray warbler & golden-crowned sparrow along the Rios trail.

 

113 species were recorded: Pacific loon, common loon, loon sp., eared grebe, western grebe, black-vented shearwater, brown pelican, double-crested cormorant, Brandt’s cormorant, American bittern, great blue heron, great egret, snowy egret, black-crowned night-heron, white-faced ibis, green-winged teal, mallard, blue-winged teal, cinnamon teal, northern shoveler, gadwall, American wigeon, red-breasted merganser, ruddy duck, osprey, white-tailed kite, northern harrier, Cooper’s hawk, red-shouldered hawk, red-tailed hawk, American kestrel, peregrine falcon, California quail, Ridgway’s rail, Virginia rail, sora, American coot, snowy plover, semipalmated plover, killdeer, black-necked stilt, American avocet, greater yellowlegs, spotted sandpiper, willet, whimbrel, long-billed curlew, ruddy turnstone, black turnstone, sanderling, western sandpiper, least sandpiper, red-necked phalarope, ring-billed gull, California gull, western gull, royal tern, Forster’s tern, tern sp., rock pigeon, Eurasian collared-dove, mourning dove, common poorwill, white-throated swift, Anna’s hummingbird, Allen’s hummingbird, Allen’s/rufous hummingbird sp., belted kingfisher, Nuttall’s woodpecker, downy woodpecker, Pacific-slope flycatcher, black phoebe, Say’s phoebe, ash-throated flycatcher, Cassin’s kingbird, horned lark, barn swallow, rough-winged swallow, California scrub jay, American crow, common raven, bushtit, Bewick’s wren, house wren, marsh wren, blue-gray gnatcatcher, California gnatcatcher, western bluebird, hermit thrush, wrentit, northern mockingbird, California thrasher, American pipit, European starling, Bell’s vireo, Hutton’s vireo, warbling vireo, orange-crowned warbler, yellow warbler, yellow-rumped warbler, black-throated gray warbler, common yellowthroat, black-headed grosbeak, spotted towhee, California towhee, Belding’s savannah sparrow, song sparrow, golden-crowned sparrow, white-crowned sparrow, red-winged blackbird, brown-headed cowbird, hooded oriole, house finch, lesser goldfinch, American goldfinch, house sparrow.

 

The next monthly bird count will be 8 May. 

R. Patton

San Diego, CA

Help needed, odd duck at Santee Lakes

phil Pryde
 

        Good Santee Lakes news:  I found the previously reported Least Bittern at Lake 7 with no problem (go out onto the floating motel rooms dock to scan the reeds for it).  

        Weird Santee Lakes news:  In Lake 2 (that has the Mast Blvd bridge over it), on the W side just N of the bridge was an immature duck that defied ID-ing.  I’m pretty sure it was a merganser going from juv. to adult plumage (making the assumption that all adults would be in alternate plumage by now).  Most things on it looked like some manner of COME, but one major one (flank color) was clearly different from anything shown in Sibley or Nat. Geog. (herein “NG”), and more resembled the brownish flank color of an adult male Hooded Merganser.    
       Things that looked like a COME:  The entire throat and breast were bright white, there were black “speckles” in the chin area, as shown in NG (but not Sibley), and the bill was bright yellow and clearly thick at the base (as NG points out in its “1st spring” depiction of a COME).  Also, the head lacked the elongated horizontal rear head feathers characteristic of both HOME and RBME.  Its legs were bright reddish-orange.  It had linear downward black feather patterns coming in from the rear neck area which were longer than the short extension on a COME but did not go all the way to the water line as per a HOME. The head lacked the oval shape of both the HOME and RBME.  Perhaps most importantly, it was large, looking at least 50% longer than the coots swimming by;  i.e., much larger than a HOME.   
       Things that looked like no depiction in either Sibley or NG:  The top of the head and nape area appeared black (not dark green), and had some white dots and the white portion had black dots.  This could perhaps just be that the plumage change was only half-way complete. 
       Things that looked like a HOME:  As noted, the flanks were brownish, somewhat similar to both books' depiction of an adult male HOME, except that the lower belly area (the area where a wigeon would be black) was white.  
       Things that didn’t look like a RBME:  the black line(s?) going downward from the neck, the pure white upper breast and front half of neck area, and the lack of linear feathers extending out and back from the head. 

       Overall, given the bird's large size, bright yellow bill with wide base, head shape, and a few other details, it seemed to most closely resemble a COME.  (Unless someone wants to make a case for a hybrid.) 
       Perhaps the main question would be:  Despite the lack of any such depiction in either Sibley or NG, could a juvenile COME ever have brownish flanks?  

       I’d appreciate any help anyone could extend as to getting a positive ID for this annoying teenager.  If anyone lives near east county, you might be intrigued by a first-hand look at this mystery bird in Pond #2 at Santee lakes. 

Phil Pryde 
San Diego 

   
    
    





Chestnut-sided Warbler: Carlsbad Continues 9APR2017

Tito Gonzalez
 

The wintering CHESTNUT-SIDED WARBLER in Carlsbad continued today 9APR2017. It has molted into alternate plumage and appears to be a male. The head looks completely different from a month ago. It was observed in the trees near northern corner of building on west side of street. Photo and stakeout location in eBird report:

 

http://ebird.org/ebird/view/checklist/S35837830

 

Tito Gonzalez

Carlsbad, CA

 

               

Warblers, Kitchen Creek Road and Pine Valley

Jeremiah Stock
 

Inspired by Andrew Partin's report, I went looking for Gray Vireos and other birds at Kitchen Creek mid-morning Sunday.  I was able to see two Gray Vireos along the Pacific Crest Trail east of Kitchen Creek Road.  I also spent a little time on the trail west of the road and saw an adult male Hermit Warbler about 100 yards from the parking area.  At Pine Valley Park there was an adult male Audubon's Warbler and an adult male Myrtle Warbler in the same pine tree, offering a nice comparison.  The exact location was between the new baseball field and the back of the Highway Patrol building just outside of the park.


Jeremiah Stock

Santee, CA

jscls@...

Mission Trails Regional Park-Sunday

Catherine Zinsky
 

Had an hour to bird this morning, so made a quick trip to Mission Trails.  It was full of walkers, hikers, campers, and backpackers.  It was also very birdy.  Highlights included:
Grasshopper Sparrows (Grasslands)
White-tailed Kite
Black-chinned Hummingbird
Rufous-crowned Sparrow
Greater Road Runner 
one very uncooperative but vocal Chat
Black-headed Grosbeak
Lark Sparrows
Lincoln's Sparrow
Ash-throated Flycatcher 

Certainly more satisfying than yesterday!  Photos at:

--
Waggin' tails,

Catherine


Author of "Attitude + Attention =Teamwork!
                           Seven Steps to Success"
Available thru www.gettoready.net

Competitive Obedience Toolbox: www.gettoready.net

Ch Borderfame Soul Train UDX, OM ('Kellan the Felon' a.k.a. 'Sir Barkalot')
OTCH Sporting Fields Summer Solstice, UDX 9, OGM ("Dax", as in "Dax of the Long Tongue" aka 'Sir Lickalot'))
Ch. OTCH Sporting Field's Quantum Leap UDX2, OM3  ('Devon' as in 'Devon the Usurper'  aka "Monkey")   
Ch. OTCH Trumagik Step Aside, UDX 20, OGM   (2002 - 2015)
Shorewind Spellbound's Dragon Rider  ("Echo")
 
 

Kitchen Creek-not

Catherine Zinsky
 

Started birding Kitchen Creek yesterday (Saturday), only to be turned back by high winds and heavy drizzle.  NOT a good day for birding  there--and I so wanted to see the Gray Vireo.  It was not to be.  Did manage to see some California Quail and one Black-chinned Sparrow before turning around.  Will try again next week.


--
Waggin' tails,

Catherine


Author of "Attitude + Attention =Teamwork!
                           Seven Steps to Success"
Available thru www.gettoready.net

Competitive Obedience Toolbox: www.gettoready.net

Ch Borderfame Soul Train UDX, OM ('Kellan the Felon' a.k.a. 'Sir Barkalot')
OTCH Sporting Fields Summer Solstice, UDX 9, OGM ("Dax", as in "Dax of the Long Tongue" aka 'Sir Lickalot'))
Ch. OTCH Sporting Field's Quantum Leap UDX2, OM3  ('Devon' as in 'Devon the Usurper'  aka "Monkey")   
Ch. OTCH Trumagik Step Aside, UDX 20, OGM   (2002 - 2015)
Shorewind Spellbound's Dragon Rider  ("Echo")
 
 

Re: LE Owls at Tamarisk Grove

Robert Theriault
 

Forgot to sign off...
Bob Theriault, Borrego Springs


On Saturday, April 8, 2017 12:05 PM, "Robert Theriault rtheriault13@... [SanDiegoRegionBirding]" wrote:


 
The stick nest at the propane tank (Tamarisk Grove) has been used by ravens for the past few years, and all of the previous LEOW nests there that I know of have been positioned on the tamarisk needles at the crotches of branches. Still, the literature states that LEOW will use nests made by other birds, so it would be cool if it is an owl nest this year. We will soon know. 


On Thursday, April 6, 2017 4:19 PM, "'Nancy Christensen' nancy.r.christensen@... [SanDiegoRegionBirding]" wrote:


 
Millie and Peter Thomas and myself were at Tamarisk Grove this afternoon where we ran into Jim Pea. Jim spotted a LE Owl near the fenced propane enclosure. After looking around we saw a nest high up in a tamarisk in the same general area (probably a red-tail hawk nest from the size). We could see (with great difficulty due to interfering vegetation) tail feathers of an incubating bird up there. The ranger says they have not been seeing any raptors on a regular basis, so I speculate this may be a LE Owl. I find it hard to believe a LE Owl would be sitting near this nest if it was occupied by a larger predator. While there and discussing this with the ranger, he said an owl had just been reported in space 19. We all walked over to look and yes indeed, yet another LE Owl. Space 19 is in the center of the campground circle and has just a shade ramada. If you walk through the ramada and look up, the owl is right there in that tree. Quite low to the ground, but awkward branch placement makes it a harder spot to get photos. So definitely 2 LE Owls, and possibly more.
 
Also seen this afternoon was a MacGillivray’s Warbler (FOS) just across the campground road to the north of space 19 (I failed to note a space number there).
 
Nancy Christensen
Ramona
 




Re: LE Owls at Tamarisk Grove

Robert Theriault
 

The stick nest at the propane tank (Tamarisk Grove) has been used by ravens for the past few years, and all of the previous LEOW nests there that I know of have been positioned on the tamarisk needles at the crotches of branches. Still, the literature states that LEOW will use nests made by other birds, so it would be cool if it is an owl nest this year. We will soon know. 


On Thursday, April 6, 2017 4:19 PM, "'Nancy Christensen' nancy.r.christensen@... [SanDiegoRegionBirding]" wrote:


 
Millie and Peter Thomas and myself were at Tamarisk Grove this afternoon where we ran into Jim Pea. Jim spotted a LE Owl near the fenced propane enclosure. After looking around we saw a nest high up in a tamarisk in the same general area (probably a red-tail hawk nest from the size). We could see (with great difficulty due to interfering vegetation) tail feathers of an incubating bird up there. The ranger says they have not been seeing any raptors on a regular basis, so I speculate this may be a LE Owl. I find it hard to believe a LE Owl would be sitting near this nest if it was occupied by a larger predator. While there and discussing this with the ranger, he said an owl had just been reported in space 19. We all walked over to look and yes indeed, yet another LE Owl. Space 19 is in the center of the campground circle and has just a shade ramada. If you walk through the ramada and look up, the owl is right there in that tree. Quite low to the ground, but awkward branch placement makes it a harder spot to get photos. So definitely 2 LE Owls, and possibly more.
 
Also seen this afternoon was a MacGillivray’s Warbler (FOS) just across the campground road to the north of space 19 (I failed to note a space number there).
 
Nancy Christensen
Ramona
 


Gray Vireos at Kitchen Creek

Andrew Partin <atpartin@...>
 

For anyone interested in Gray Vireos, I saw 3 on the Pacific Crest Trail east of Kitchen Creek road yesterday, April 7th.  All were within a half mile of the road. I also had a pair of Scott's Orioles.  Checklist with photos below. 

http://ebird.org/ebird/view/checklist/S35776857

Andrew T. Partin
Wildlife Specialist, USDA APHIS
San Diego County, CA

Lesser Nighthawks

phil Pryde
 

A minimum of at least 3 Lesser Nighthawks were observed this (Fri.) evening around 7:30 p.m. flying over the urbanized area of Tecate, CA.  This is consistent with historic spring arrival dates in the Bird Atlas (p. 297).  I mention it because the Atlas does not show any records during the count period from the Tecate area (square V19 and surrounding). 
Phil Pryde 
San Diego

Phil Pryde

pacific golden-plover continues tijuana estuary 4-6-17

Robert Patton
 

Just a note that the overwintering Pacific golden-plover was seen again yesterday around 9:20 am perched amid dune vegetation atop a hummock near the channel a couple hundred yards north of the mouth of the Tijuana River - at least at that time it was easily viewable with binoculars from the beach outside the snowy plover nest area fencing.  (Please don't spend too much time in any one place along the fenceline since there are plovers that can be flushed from nests just inside the fence).

R. Patton

San Diego, CA

Black-throated sparrow in La Jolla

Marsha Ingersoll
 

The above species was observed foraging  at La Jolla Hermosa Park today.  Photo's taken and submitted to e-bird.

Hank Ingersoll
La Jolla


next san elijo monthly bird count monday 10 april

Robert Patton
 

Please spread the word –

San Elijo Lagoon monthly bird count

Monday April 10th (& 2nd Monday of each month, rain or shine)

Meet at the north end of Rios Ave in Solana Beach at 7:30 am

(from I-5, exit Lomas Santa Fe Dr & head west, turn north on Rios Ave which is just east of Highway 101 & the railroad tracks)

Bring a lunch or pick up one nearby & we’ll meet to compile at noon at the nature center (SE of intersection of Manchester Ave & San Elijo Ave)

Thanks!

 R. Patton

San Diego, CA

LE Owls at Tamarisk Grove

Nancy Christensen
 

Millie and Peter Thomas and myself were at Tamarisk Grove this afternoon where we ran into Jim Pea. Jim spotted a LE Owl near the fenced propane enclosure. After looking around we saw a nest high up in a tamarisk in the same general area (probably a red-tail hawk nest from the size). We could see (with great difficulty due to interfering vegetation) tail feathers of an incubating bird up there. The ranger says they have not been seeing any raptors on a regular basis, so I speculate this may be a LE Owl. I find it hard to believe a LE Owl would be sitting near this nest if it was occupied by a larger predator. While there and discussing this with the ranger, he said an owl had just been reported in space 19. We all walked over to look and yes indeed, yet another LE Owl. Space 19 is in the center of the campground circle and has just a shade ramada. If you walk through the ramada and look up, the owl is right there in that tree. Quite low to the ground, but awkward branch placement makes it a harder spot to get photos. So definitely 2 LE Owls, and possibly more.

 

Also seen this afternoon was a MacGillivray’s Warbler (FOS) just across the campground road to the north of space 19 (I failed to note a space number there).

 

Nancy Christensen

Ramona

 

birding & guide around Tulum, Mexico

Ed Henry
 

My wife and I are going to Tulum for a wedding and will have two mornings for birding in the area. If you could recommend a guide or have any advise on birding hotspots there, we would be grateful.

Ed Henry