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THE WILSON JOURNAL OF ORNITHOLOGY • Vol. 124. No. 4. December 2012 
APPENDIX 1. Recording localities that corre¬ 
spond to numbers in Table 1. 
ARGENTINA. Buenos Aires. I-Saladillo (59 
56' W. 35 30' S). Entre Rios. 2-Ibicuy (59 09’ 
W, 33 44' S), 3-Arroyo Nancay (58 44' W, 33 
23' S), 4-Estancia La Marita (58 35' W, 33 20' 
S), 5-Gualeguaychu (58 : 30' W, 33" 00' S). 6-Las 
Piedras (58" 33' W, 32° 53' S). 7-Larroque (59 
00' W. 33 : 02' S), 8-Urdinarrain (58 53' W, 32 
41' S), 9-Puerto Liebig and Arroyo Caraballo (58 
11' W. 32 09' S), I0-PN El Palmar (58 18' W, 
31° 55' S). II-Arroyo Barn (58 27’ W, 31 52' 
S), 12-San Salvador (58 30' W, 31 37’ S). Santa 
Fe. 13-Sauce Viejo (60 50' W, 3D 46' S), 14- 
Campo del Medio (60 08' W, 31 08' S). 
Cordoba. 15-Laguna Mar Chiquita (62 r 43' W. 
30 57' S). Corrientes. I6-Mercedes (58 05' W. 
29 10 S), I7-Eslancia Rincon del Socorro (57 
10' W, 28 32' S), 18-Colonia Pellegrini (57 10' 
W. 28° 35' S), 19-Camba Trapo (56° 51' W, 28 
27' S), 20-Cuenca del Rio Aguapey (56 56' W. 
28 36' S), 21- Estancia San Juan Poriahu (57 11' 
W, 27 42' S)/PN Mburticuyi (58‘ 05' W, 28' 00' 
S), 22-Rincon Santa Marfa (56'35' W, 27' 30' S). 
Formosa. 23-Estancia F.I Bagual (58 56' W. 26 
10 S). URUGUAY. Rocha. 24-Laguna Negra 
(53° 40' W. 34 00' S), 25-Banados de la India 
Muerta (53 50' W, 33" 45' S), 26-Cebollatf (53 
38' W, 33 15' S). Paysandu. 27-Lorenzo 
Geyres-Quebracho (57 55' W, 32 04' S), 28- 
Queguayar (57 50' W, 32 00' S). BOLIVIA. 
Santa Cruz. 29-Lomas de Arena (63 10' W. 17 
56' S), 30-Pampas de Viru-Viru (63 08' W. 17° 
39' S). Beni. 31 -Trinidad-Mamore (64 54' W, 
14 50 S). BRAZIL. Parana. 32-Faz Chapadao- 
Rio das Perdizes (49 51' W. 24 17' S). Santa 
Catarina. 33-Coxilha Rica (50 15' W. 28 18' 
S), 34-Estancia do Meio (50" 15' W. 28 18' S). 
35-Rio Sao Mateus (50 13' W. 28 21' S). 36- 
Pedra Branca (50 02' W, 27 55' S). 37-Sao 
Joaquim/Lages (49 55' W, 28° 17 ' S). Rio 
Grande do Sul. 38-Capao Alto (50 58' W. 28 
12' S), 39-Sao Pedro (50 56' W. 28 13’ S) 40- 
Capao Bonito (51 16' W. 28 04' S), 41-Antma 
Esta^ao Ferrea-Bom Jesus (50 44' W, 28 19' S) 
42-Fazenda Socorro/Rio Santana (50 48' W. 28 
22 S), 43-Cachoeira dos Baggio (50 28' W. 28 
40' S). 44-Guaeho (51 05' W, 28 40' S) 45- 
Distrito Areal-Quaraf (56 23' w’ 30" 26' S). Mato 
Grosso. 46-Campos do Encanto-Vila Bela da 
Santfssima Trindade (59 48' W, 15 03' S). Sao 
Paulo. 47-Mogi das Cruzes (46° 07' W, 23" 33' S) 
48-Estagao Ecologica Itirapina (47 55' W. 22 12' 
S). Bahia. 49-Boa Nova (40 5 13' W, 14° 21' S). 
APPENDIX 2. Recordings analyzed in this 
study. Number in square brackets denotes number 
of individuals and number in parentheses indi¬ 
cates reference number in the data base. All 
recordings by .11A except those indicated by AJ = 
Alvaro Jaramillo. BH = Bennet Hennesey. BO = 
Brian O'Shea, CD = Charles Duncan. CM = 
Curtis Marantz, I)M - Diego Monteleone. EVI = 
Eugene Morton, F.) = Fernando Jacobs, FS = 
Fabio Silva. HR = Heimz Remold. LD = L. 
Davis, MR = Marcio Repenning. MP - Mark 
Pearman. PAS = Paul Schwartz. RF = Rosendo 
Fraga, SD = Susan Davis, SM — Sjoerd Maijer, 
TP = Ted Parker 111. and QV = QuillenVidoz. 
S. casta neiventris [2]. BRAZIL. Bajo Rio 
Uaipas. Amazonas [1| (CMI: MLNS-113196- 
113197), Careiro do Castanho. Amazonas |I] 
(CM2: MLNS-127641). 
S. melanogaster [12]. BRAZIL. 2007-2009: 
Pedras Brancas 111 (I). Sao Joaquim/Lages 
111 (2), Coxilha Rica [6J (4-9), Bom Jesus |1] 
(3), Fazenda Socorro HJ (10). 1979-1982: Sao 
Francisco de Paula |2] (FSIl: MLNS-25401, 
TP 12: MLNS-32160-32161). 
S. ‘ xttmanxti' [4]. BRAZIL. Coxilha Rica ID 
(MR1), Estancia do Meio [l| (MR2), Bom 
Jesus [If (MR3). Rio Santana [I] (MR4). 
S. mi nut a [23]. VENEZUELA. Caracas [19| 
(PAS 1-19: MLNS-1 5470-15484, 15486- 
15489), Santa Elena de Guairen [I] (CD1: 
MLNS-110188). GUYANA. Rio Corantyne [1] 
(BOl: MENS-134808). MEXICO. Chuhuites 
IIJ (LDI: MLNS-15485). PANAMA. Toeu- 
mun |1| (EMI: MLNS-15490). 
S. hypoxantha [103+]. ENTRE RIOS REGIO- 
LEC1 [14|. ARGENTINA. Estancia La Mar¬ 
ita [ 131 (1-5. 7. 32-37), Campo del Medio [lj 
(38). BOLIVIA. Trinidad (I) [631. FOR¬ 
MOSA REGIOLECT [19], ARGENTINA. 
Estancia F.I Bagual [16] (43-58), Estancia La 
Marita 11 ] (6), Campo del Medio [2] (39. 40). 
CORRIENTES REGIOLECT [24]. ARGEN¬ 
TINA. Colonia Pellegrini (8. 9, 12-13. 17). 
Camba Trapo [2] (10, 11). Mercedes (14-16. 
28). Estancia Rincon del Socorro [14] (18-27. 
29-31, 42). LOWLAND BOLIVIA REGIO¬ 
LECT. Trinidad [2+] (SM68-69. + several in 
non-breeding mixed species Bocks). SOUTH¬ 
EAST BRASIL REGIOLECT [43]. BRAZIL. 
