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Figure 4 in Range extensions for Yellow-crowned Elaenia Myiopagis flavivertex and Dugand's Antwren Herpsilochmus dugandi in eastern Colombia

Figure 4. Female Dugand's Antwren Herpsilochmus dugandi, near Caño Negro, Buena Vista II, municipality of San José del Guaviare, dpto. Guaviare, Colombia, July 2016 (Wilmer A. Ramírez)

Figure 3 in Range extensions for Yellow-crowned Elaenia Myiopagis flavivertex and Dugand's Antwren Herpsilochmus dugandi in eastern Colombia

Figure 3. New records of Dugand's Antwren Herpsilochmus dugandi in Colombia, in dpto. Guaviare (red spots), and the species' range in surrounding countries per BirdLife International (2017; green). Records: 1: Los Cambulos, 2–6: Buena Vista II, 7: Playa Güio.

Figure 1 in Range extensions for Yellow-crowned Elaenia Myiopagis flavivertex and Dugand's Antwren Herpsilochmus dugandi in eastern Colombia

Figure 1. New records of Yellow-crowned Elaenia Myiopagis flavivertex in Colombia, in dptos. Guaviare and Meta (red spots), and the species' range in surrounding countries per BirdLife International (2017; green). Blue spot = only previous known locality in Colombia, in municipality of Inírida, dpto. Guainía. Records: 1–3 and 6: Puerto Concordia (Meta); 4–5: Buena Vista II; 7: El Retorno, 8: Damas de Nare, 9: Playa Güio.

Figure 2 in Range extensions for Yellow-crowned Elaenia Myiopagis flavivertex and Dugand's Antwren Herpsilochmus dugandi in eastern Colombia

Figure 2. Yellow-crowned Elaenia Myiopagis flavivertex, Playa Alta, municipality of Puerto Concordia, dpto. Meta, Colombia, January 2017 (Wilmer A. Ramírez)

FIGURE 10 in Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes

FIGURE 10. Geographical distribution of Myiopagis caniceps (shaded area) and M. olallai (green dots). (A) Approximate distribution of differentiated lineages in M. caniceps. (B) Inset map showing the locality records of M. olallai along the Andes, including the Antioquia (coopmansi) and Perijá (incognita) forms. (C) Detailed map of the northern Andes in Colombia and western Venezuela showing the localities of M. olallai coopmansi in the northern Central cordillera, Antioquia, Colombia (1: Bosque Guayabito, 2: Bosque Las Ánimas, 3: Bodega Vieja, 4: La Forzosa, 5: Alto El Chaquiral), and of M. olallai incognita in the Serranía de Perijá (6: Ayapa). For details on localities see text and Cuervo et al. (2008a). Question marks are placed at sampling gaps in the range of this group of Myiopagis, where future fieldwork could confirm the occurrence of these taxa. The star at Serranía de San Lucas indicates misidentified sound recordings (XC92160, XC104264, XC104475) that do appear to correspond to M. o. coopmansi, but this locality needs specimen confirmation.

FIGURE 7 in Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes

FIGURE 7. Dorsal (top), ventral (middle), and lateral (bottom) views of specimens of closely related Myiopagis flycatchers of Andean cloud forests. From left to right: "Antioquia Myiopagis": ICN 38437, 35903 (males); Myiopagis olallai: MECN 7141 (male), 6902 (male holotype), 7142 (female), 6903 (female paratype), AMNH 819936 (male); "Perijá Myiopagis": COP 6733 (unsexed), Pons 3861 (male), 3860 (female).

FIGURE 8 in Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes

FIGURE 8. Male (left) and female (right) specimens of differentiated lineages of the paraphyletic Myiopagis caniceps. From left to right: M. caniceps caniceps: LSUMZ 32295, 124630; M. c. aff. caniceps: LSUMZ 102674, 85215; M. c. cinerea: LSUMZ 110744, 115989; M. c. absita: USNM 483342, 483341 (types); M. c. parambae: AMNH 499606 (holotype), ANSP 147150 (female). For further information, see Appendix 1.

FIGURE 5 in Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes

FIGURE 5. Gene trees of Myiopagis flycatchers inferred for the mitochondrial gene ND2 (A) and the autosomal intron FGB-5 (B). Topologies and branch lengths resulted from 50% majority-rule consensus calculations. Strong statistical support in both Bayesian and maximum likelihood analysis indicated as black dots or asterisks (>0.99 posterior probability and>95% bootstrap support, respectively), numerical support is reported otherwise.

FIGURE 6 in Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes

FIGURE 6. Consensus species-tree from the BEST analysis based on ND2 and FGB-5 sequences indicating Bayesian posterior probabilities of the species relationships in Myiopagis flycatchers. Differentiated populations from disjunct geographic regions of M. caniceps were treated independently. The Andean taxa in this complex are represented only by the two samples of the "Antioquia Myiopagis", due to missing sequence data for one or both molecular markers for M. olallai and the "Perijá Myiopagis". Geographic regions for each taxon in the caniceps-olallai group are indicated.

FIGURE 4 in Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes

FIGURE 4. Spectrograms of call vocalizations in Myiopagis olallai and its closest relatives. (A) Andean grayish form from Bosque Guayabito, Amalfi, Antioquia, Colombia (IAvH-BSA 19543 by AMC, 21 January 2002); (B) Andean grayish form from Bosque Las Ánimas, Amalfi, Antioquia, Colombia (IAvH-BSA 19218 by AMC, 11 February 2002); (C) M. olallai from type locality, Zamora-Chinchipe, Ecuador (ML60232 by P. Coopmans, 20 June 1992); (D) M. caniceps caniceps from Río Grande do Sul, Brazil (ML 19532 by W. Belton, November 1975); (E) M. caniceps cinerea from Napo, Ecuador (by N. Krabbe, October 1994); (F) M. caniceps parambae from Imbabura, Ecuador (XC71233 by D. F. Lane, 14 July 1997). Panels C, D, and E based on figure 2 in Coopmans & Krabbe (2000); reprinted with the written permission of the Wilson Ornithological Society, 3 February 2012.

FIGURE 1 in Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes

FIGURE 1. Photograph of the "Antioquia Myiopagis" exhibiting some of the characteristics, including light gray underparts, mossy green back, dark gray head, immaculate white crown patch, and reddish-brown eyes, that distinguish it from other taxa. Collected in an Andean cloud forest (1825 m) at Bosque Guayabito, Amalfi, Department of Antioquia, Colombia (ICN 35903).

FIGURE 3 in Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes

FIGURE 3. Box plots comparing the "Antioquia Myiopagis" and M. olallai in six song attributes. (A) song pace; (B) song duration; (C) number of notes in the trill part of the song; (D) maximum and (E) minimum frequency of the trill; (F) frequency range of the trill (non significant). Data points represent the average values per individual bird.

FIGURE 2 in Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes

FIGURE 2. Spectrograms of songs of selected Myiopagis flycatchers. (A) Andean grayish form from Bosque Guayabito, Amalfi, Antioquia, Colombia (IAvH-BSA 19580 by AMC, 24 January 2002); (B) Andean grayish form from Bosque Las Ánimas, Amalfi, Antioquia, Colombia (IAvH-BSA 19187 by AMC, 8 February 2002); (C and D) M. olallai from the type locality, Zamora-Chinchipe, Ecuador (ML 60232 by P. Coopmans, 20 June 1992); (E) M. caniceps caniceps from Río Grande do Sul, Brazil (ML 19532 by W. Belton, November 1975); (F) M. caniceps cinerea from Napo, Ecuador (by N. Krabbe, October 1994); (G) M. caniceps parambae from Pichincha, Ecuador (by P. Coopmans, February 1995). Panels C-G based on figure 1 in Coopmans & Krabbe (2000); reprinted with the written permission of the Wilson Ornithological Society, 3 February 2012.

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FIGURE 9 in Geographic variation and phylogenetic relationships of Myiopagis olallai (Aves: Passeriformes; Tyrannidae), with the description of two new taxa from the Northern Andes

FIGURE 9. Spread left wing from the holotype of Myiopagis olallai coopmansi (ICN 38437).