BAJA CALIFORNIA PENINSULA 
This nearly adult male Great Frigatebird was photographed at Punta Arena, Baja California Sur 1 1 August 2009. Although the 
species nests as close as the Revillagigedo Islands, this established only the second record for the Baja California Peninsula. 
Photographs by Steven 6. Mlodinow. 
Desert and the California District merge, and 
where the Sierra San Pedro Martir is not far 
removed. 
A juv. Beldings Yellowthroat following an 
ad. male at Miraflores 11 Aug suggested local 
nesting (SGM). The species was considered 
common there 100 years ago but was subse- 
quently regarded as extirpated. More recently, 
a few birds have been found in fall and winter, 
and one (or more) singing male was present in 
Jul 2007 and Jul 2008. Similarly, a juv. Savan- 
nah Sparrow at Estero San Jose 12 Aug (ph. 
SGM) appeared to be too young to have wan- 
dered far from its natal territory. Despite con- 
siderable coverage there, the species has never 
been suspected of nesting anywhere closer 
than Bahia Magdalena. A singing Grasshopper 
Sparrow on the Maneadero Plain 24 Jun (RAE) 
was heartening in light of ongoing develop- 
ment there. Also singing, but nowhere near a 
territory, was a very late dark-lored White- 
crowned Sparrow (presumably oriantha) at La 
Bufadora 14 Jun (KAR, DJP). A male Rose- 
breasted Grosbeak was seen at Tecate 3 & 24 
Jul, 7 Aug, and 11 Sep (ph. JS et al). Another 
rare, and apparently irregular, nesting species 
on the Maneadero Plain is Tricolored Black- 
bird. A pond there hosted 175 birds 24 Jun, in- 
cluding many Oedglings (RAE). The species 
was not reported elsewhere. 
Contributors: Edgar Amador, Victor Ayala, 
Humberto Berlanga, Alejandra Calvo Fonse- 
ca, Deneb Cardenas, Roberto Carmona, Harry 
R. Carter, Rafael Cruz-Lopez, Horacio de la 
Cueva, Mariana Diaz, Richard A. Erickson, 
Daniel Galindo Espinosa, Jan Goerrissen, 
Frank L. Haselton, Adriana Hernandez, Steve 
N. G. Howell, W. Terry Hunefeld, Diego Juar- 
isti, Leonardo Luna, Guadalupe Marron, 
Ruhama Mercado. Steven G. Mlodinow, 
Denisse Morales, Greg Myer, Eduardo Pala- 
cios, David J. Powell, Eduardo L. Prieto, 
David W. Povey, Peter Pyle, Kurt A. Radamak- 
er, Gorgonio Ruiz-Campos, Mike San Miguel, 
Brooks R. Smith, Eduardo Soto Montoya, Joe 
Sweeney, Art Taylor, Christopher L. Wood 
(eBird), Enrique D. Zamora-Hernandez. ^ 
Richard A. Erickson, LSA Associates 
20 Executive Park, Suite 200, Irvine, California 92614 
(richard.ericksonisisa-assoc.com) 
Roberto Carmona, Departamento de Biologia Marina 
Universidad Autonoma de Baja California Sur 
Apartado Postal 19-B, La Paz, Baja California Sur, Mexico 
(beauty@uabcs.mx) 
Gorgonio Ruiz-Campos, Facultad de Ciencias 
Universidad Autonoma de Baja California 
Apartado Postal 233 
Ensenada, Baja California, 22800, Mexico 
U. S. mailing address: 
PMB064,P.0. Box 189003 
Coronado, California 92178-9003 
(gruiz@uabc.mx) 
Mexico I 
Hector Gomel de Silva 
NORTHERN MEXICO 
GREBES THROUGH FINCHES 
At least 6 Clark’s Grebes were at Laguna de 
Bustillos just n. of Cuauhtemoc, Chih. 1 Jun 
(BW, MW, AF, SW). A belated but noteworthy 
record was received of an ad. King Vulture 
soaring over Gomez Farias, Tamps. 20 Oct 
2008 (ph. C&PS, DM, DH, RJ, m.ob.). A late 
ad. Broad-winged Hawk was at Gomez Farias 
1 Jun (MC). A Peregrine and a White-tailed 
Hawk were near Los Murillos, Nay. 11 Jun 
(AD, AL, BM). More than 100 Limpkins were 
estimated at Los Murillos 11 Jun (AD). One 
late or summering Sandhill Crane was at La- 
guna de Bustillos 1 Jun (BW, MW, AF, SW). 
Summering or late shorebirds at Los Murillos 
12 Jun were 2 Marbled Godwits, 4 Whim- 
brels, a Black-bellied Plover, a Greater Yel- 
lowlegs, plus a Gull-billed Tern (AD, BM). 
Gulls and terns at Laguna de Bustillos 1 Jun 
VOLUME 63 (2009) 
NUMBER 4 
659 
