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1

Hudon, Jocelyn. "Unusual carotenoid use by the Western Tanager (Piranga ludoviciana) and its evolutionary implications." Canadian Journal of Zoology 69, no. 9 (September 1, 1991): 2311–20. http://dx.doi.org/10.1139/z91-325.

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I used spectrophotometric, chromatographic, and chemical means to establish that rhodoxanthin, a 3-keto-retrodehydro carotenoid, was the only red pigment in the head feathers of the Western Tanager (Piranga ludoviciana). In contrast, the red head and body feathers of a close relative, the Scarlet Tanager (P. olivacea), exhibited several 4-keto-carotenoids. Other tanagers and emberizids also displayed 4-keto-carotenoids. The deposition of presumed canary xanthophylls and phaeomelanins differed quantitatively between the Western Tanager and other tanagers belonging to the genus Piranga. Uniquely among the Piranga spp. examined, the head feathers of the Western Tanager had flattened bards without barbules. Partly because the head colors of the Western and Scarlet tanagers were indistinguishable either in the hand or when examined by reflectance spectrophotometry, I excluded selection for a variant color as the basis for the observed chemical and morphological differences. Biochemical costs, including putative costs associated with the endogenous production of 4-keto-carotenoids, could have led to the conversion in the Western Tanager to an available dietary pigment. This tanager, unlike the other species studied, has access to an abundant source of rhodoxanthin in the coniferous forests of western North America. The pigment changes in the Western Tanager could have taken place with minimal effect on head color.
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2

EISERMANN, KNUT, SUSANNE ARBEITER, GERARDO LÓPEZ, CLAUDIA AVENDAÑO, and JOSUÉ DE LEÓN LUX. "Distribution, habitat use, and implications for the conservation of the globally threatened Azure-rumped Tanager Tangara cabanisi in Guatemala." Bird Conservation International 21, no. 4 (February 11, 2011): 423–37. http://dx.doi.org/10.1017/s0959270910000638.

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SummaryThe Azure-rumped Tanager Tangara cabanisi is a globally threatened species restricted to the Pacific slope mountains of western Guatemala and Chiapas, Mexico. We studied the habitat use of this tanager on the southern slope of Atitlán volcano, department Suchitepéquez, Guatemala, applying distance sampling along transects in humid broadleaf forest and coffee plantations. The tanager was recorded in both habitat types, but encounter rates were significantly greater in broadleaf forest. The estimated density of tanagers in forest at 1,400–1,900 m was 33–93 birds km−2. Tanagers were recorded mainly in the upper vegetation strata of forest and shade coffee plantations. In coffee plantations tanagers used mainly tall solitary trees or the canopy of shade trees, which were dominated by Inga spp. The number of observations of feeding tanagers in Ficus aurea (Moraceae) indicated a high importance of this food source. The density of F. aurea trees and the encounter rate of tanagers were positively correlated. From 1987 to 2009 tanagers have been recorded at nine topographic units and a total of 16 sites in Guatemala, in the departments of San Marcos, Quetzaltenango, Sololá, Suchitepéquez, and Chimaltenango. We analysed the available habitat for tanagers in the potential area of distribution (1,170 km2), ranging from 900 to 1,900 m altitude and from the Mexican border in the West to the municipality of Pochuta in the East. Broadleaf forest covers 250 km2 or 21% of the potential area of distribution, and coffee plantations cover 800 km2 or 68%. Assuming that population density in prime habitat throughout the potential distribution range is similar to our study area at Atitlán volcano, total tanager population in Guatemala is estimated to be 8,250–23,250 birds. Our findings support the maintenance of the IUCN Red List status of Endangered EN B1a+b(ii,iii,v). To enhance the available habitat for Azure-rumped Tanager, we propose alterations in the shade management of coffee plantations, supported by incentives and certification programmes.
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3

PIACENTINI, VÍTOR DE Q. "A new genus for the Blue-and-yellow Tanager (Aves: Passeriformes): a suggested adjustment to the classification of the Thraupidae." Zootaxa 4276, no. 2 (June 11, 2017): 293. http://dx.doi.org/10.11646/zootaxa.4276.2.11.

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Recent DNA-based studies have found that the genus Thraupis, as traditionally defined, is polyphyletic, with the Blue-and-yellow Tanager (historically treated as Thraupis bonariensis) being sister to the Fawn-breasted Tanager (Pipraeidea melanonota). As a result, most subsequent classifications lumped both species under a single genus, Pipraeidea. Here I show that both species differ markedly in plumage, morphology, voice, and behavior, each of them being more similar to a distantly related species than to each other. As such, I argue that the treatment of the Blue-and-yellow Tanager in Pipraeidea creates an undiagnosable genus contrasting greatly with the generic limits commonly applied to the tanagers. To avoid this situation, I propose the recognition of a new genus, Remsenornis gen. nov., for the Blue-and-yellow Tanager.
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4

Young, Brian. "Summer Tanager." Chicago Review 40, no. 2/3 (1994): 106. http://dx.doi.org/10.2307/25305853.

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5

Zima, Paulo Victor Queijo, Daniel Fernandes Perrella, and Mercival Roberto Francisco. "First nest description of the Azure-shouldered Tanager (Thraupis cyanoptera, Thraupidae)." Revista Brasileira de Ornitologia 27, no. 2 (June 2019): 122–25. http://dx.doi.org/10.1007/bf03544456.

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AbstractThe genus Thraupis represents the typical tanagers, and despite the commonness of some species their reproductive aspects are poorly documented. Here we provide the first description of nests and nestlings of the Azure-shouldered Tanager, Thraupis cyanoptera, and we provide additional information on eggs. We found three active nests at Carlos Botelho State Park, southeastern Brazil, in September and October 2014, and in November 2016. The nests were built within large tangles of bromeliads, 4.1–5.2 m above ground. They were shallow bottom-supported cups, composed mainly of elongated stripes of dry bromeliad leaves. Eggs were subeliptical, with white background color and small brown spots and blotches evenly distributed throughout the surface. Nestlings had pink skin and gray down, with ocher bill and white swollen flanges. Although more forest-dwelling than other congeners, the Azure-shouldered Tanager seems to tolerate some habitat disturbance, as nests were observed in clearings.
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6

Osherow, J. "New Tanager/New Song." Literary Imagination 1, no. 1 (January 1, 1999): 126–30. http://dx.doi.org/10.1093/litimag/1.1.126.

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7

Levey, Douglas J. "Sugar-Tasting Ability and Fruit Selection in Tropical Fruit-Eating Birds." Auk 104, no. 2 (April 1, 1987): 173–79. http://dx.doi.org/10.1093/auk/104.2.173.

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Abstract The sugar-tasting abilities of four species of tanagers and two species of manakins were tested. Three tanager species were able to detect differences in diets containing 8%, 10%, and 12% sugar. In pairwise choice trials, they preferred the diet highest in sugar. Neither species of manakin discriminated among the three diets. This apparent difference in tasting abilities of tanagers and manakins may be a result of their fruit-handling techniques. Tanagers crush fruits in their bills, thereby releasing juices onto their tongues. Manakins swallow fruits whole; their tongues rarely encounter fruit juice. Hence, manakins' fruit-handling technique is poorly suited for sensing the taste cues in fruit juices. Variation in fruit sugar concentration is common within and among plant species and is great enough to be detected by birds. Birds probably have selected for sweeter fruits.
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8

AVENDAÑO, JORGE ENRIQUE, F. KEITH BARKER, and CARLOS DANIEL CADENA. "The Yellow-green Bush-tanager is neither a bush-tanager nor a sparrow: Molecular phylogenetics reveals that Chlorospingus flavovirens is a tanager (Aves: Passeriformes; Thraupidae)." Zootaxa 4136, no. 2 (July 6, 2016): 373. http://dx.doi.org/10.11646/zootaxa.4136.2.7.

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9

PRICE, ROGER D., and KEVIN P. JOHNSON. "Five new species of Myrsidea Waterston (Phthiraptera: Menoponidae) from tanagers (Passeriformes: Thraupidae) in Panama." Zootaxa 2200, no. 1 (August 17, 2009): 61–68. http://dx.doi.org/10.11646/zootaxa.2200.1.4.

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There are 23 species of Myrsidea recognized from passerine thraupid hosts. Five new species parasitic on members of this avian family are described. They and their type hosts are Myrsidea rozsai ex the Thick-billed Euphonia, Euphonia laniirostris d'Orbigny & Lafresnaye, M. cruickshanki ex the Carmiol's Tanager, Chlorothraupis carmioli (Lawrence), M. patersoni ex the Grey-headed Tanager, Eucometis penicillata (Spix), M. pagei ex the Crimson-backed Tanager, Ramphocelus dimidiatus Lafresnaye, and M. valimi ex the Tawny-capped Euphonia, Euphonia anneae Cassin. The first species is placed in the bonariensis species group, while the remaining four are placed in the fusca species group. Sequences of a portion of the mitochondrial cytochrome oxidase I (COI) gene were compared to other species of Myrsidea and were highly divergent.
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10

Fiala, Kent. "Life of the Tanager. Alexander F. Skutch." Quarterly Review of Biology 65, no. 2 (June 1990): 234. http://dx.doi.org/10.1086/416768.

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11

KRUEGER, TERRY R., and DEAN A. WILLIAMS. "Microsatellite loci for Cherrie's tanager (Ramphocelus costaricensis)." Molecular Ecology Notes 6, no. 3 (September 2006): 853–55. http://dx.doi.org/10.1111/j.1471-8286.2006.01371.x.

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12

Literák, I., J. Sitko, O. Sychra, and M. Čapek. "Cutaneous trematode Collyriclum faba in wild birds in Costa Rica." Helminthologia 48, no. 4 (December 1, 2011): 288–89. http://dx.doi.org/10.2478/s11687-011-0040-4.

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AbstractAn adult Collyriclum faba was found in a cutaneous cyst at the base of the lower mandible in a blue-gray tanager (Thraupis episcopus, Thraupidae) examined in the Zona Protectora Las Tablas, Costa Rica on 18 August 2010. A total of 1878 birds belonging to 217 species were examined in the country during 2004, 2009, and 2010. C. faba was found for the first time in blue-gray tanager and for the first time in Costa Rica as well.
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13

Klicka, John, Kevin P. Johnson, and Scott M. Lanyon. "New World Nine-Primaried Oscine Relationships: Constructing a Mitochondrial DNA Framework." Auk 117, no. 2 (April 1, 2000): 321–36. http://dx.doi.org/10.1093/auk/117.2.321.

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AbstractHistorically, a paucity of comparative morphological characters has led to much debate regarding relationships within and among the major lineages of New World nine-primaried oscines. More recently, DNA-DNA hybridization studies have provided novel and testable hypotheses of relationships, although no consensus has been reached. For 40 songbird taxa, we obtained 1,929 base pairs (bp) of DNA sequence from the mitochondrial cytochrome-b (894 bp) and NADH dehydrogenase subunit 2 (1,035 bp) genes. Phylogenetic analyses confirm the monophyly of this assemblage as traditionally defined. The lineages delineated historically on morphological grounds are retained; finches (Fringillinae) are sister to a well-supported clade (Emberizinae) containing blackbirds (Icterini), sparrows (Emberizini), wood-warblers (Parulini), tanagers (Thraupini), and cardinal-grosbeaks (Cardinalini). However, each tribe individually is either paraphyletic or polyphyletic with respect to most recent songbird classifications. Our results suggest that Euphonia is not a tanager but perhaps represents a derived form of cardueline finch. Piranga, traditionally considered a typical tanager, is a cardinaline in all of our analyses. Calcarius falls outside the sparrow lineage in all of our analyses, but its true affinities remain unclear. Elements of four different AOU families are represented in our clade Thraupini. The inclusion of several “tanager-finches” (Haplospiza, Diglossa, Tiaris, Volatinia, Sporophila) and a nectarivore (Coereba) in this clade is consistent with findings from other molecular phylogenies in suggesting that convergence in feeding specializations among some lineages has confounded traditional morphological classifications. We obtained a novel arrangement of relationships among tribes in our “best” topology; Cardinalini is sister to the rest of the Emberizinae assemblage (as defined by Sibley and Ahlquist [1990]), and Thraupini is sister to a clade containing Icterini, Emberizini, and Parulini. Despite nearly 2,000 bp of sequence for each taxon, and a high degree of stability across most weighting schemes and analytical methods, most nodes lack strong bootstrap support. The ND2 gene provided higher resolution than did cytochrome b, but combining genes provided the most highly supported and resolved topology. We consider the phylogeny a working hypothesis to be used as a guide for further studies within the nine-primaried oscine assemblage.
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14

Robinson, W. Douglas. "Summer Tanager (Piranga rubra)." Birds of North America Online, August 31, 2012. http://dx.doi.org/10.2173/bna.248.

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15

Hudon, Jocelyn. "Western Tanager (Piranga ludoviciana)." Birds of North America Online, January 1, 1999. http://dx.doi.org/10.2173/bna.432.

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16

Mowbray, Thomas B. "Scarlet Tanager (Piranga olivacea)." Birds of North America Online, January 1, 1999. http://dx.doi.org/10.2173/bna.479.

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17

Eddleman, William R. "Hepatic Tanager (Piranga flava)." Birds of North America Online, January 1, 2002. http://dx.doi.org/10.2173/bna.655.

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18

Eddleman, William R. "Hepatic Tanager (Piranga flava)." Birds of North America Online, January 1, 2002. http://dx.doi.org/10.2173/bna.heptan.02.

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19

Mowbray, Thomas B. "Scarlet Tanager (Piranga olivacea)." Birds of North America Online, January 1, 1999. http://dx.doi.org/10.2173/bna.scatan.02.

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20

Robinson, W. Douglas. "Summer Tanager (Piranga rubra)." Birds of North America Online, August 31, 2012. http://dx.doi.org/10.2173/bna.sumtan.02.

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21

Hudon, Jocelyn. "Western Tanager (Piranga ludoviciana)." Birds of North America Online, January 1, 1999. http://dx.doi.org/10.2173/bna.westan.02.

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22

"Life of the tanager." Choice Reviews Online 27, no. 02 (October 1, 1989): 27–0948. http://dx.doi.org/10.5860/choice.27-0948.

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23

Gonzalez, Amanda J., Kevin J. Burns, and Casey H. Richart. "Cinnamon Tanager (Schistochlamys ruficapillus)." Neotropical Birds, July 17, 2015. http://dx.doi.org/10.2173/nb.cintan1.01.

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24

Austin, Bertrand Clark, and Kevin J. Burns. "Emerald Tanager (Tangara florida)." Neotropical Birds, December 2, 2011. http://dx.doi.org/10.2173/nb.emetan1.01.

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25

Cameron, Jennifer Lauren, and Kevin J. Burns. "Golden Tanager (Tangara arthus)." Neotropical Birds, September 24, 2010. http://dx.doi.org/10.2173/nb.goltan1.01.

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26

Johnstone, Andrew, and Kevin J. Burns. "Guira Tanager (Hemithraupis guira)." Neotropical Birds, January 21, 2011. http://dx.doi.org/10.2173/nb.guitan1.01.

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27

Lindenblatt, Kyle, and Kevin J. Burns. "Hooded Tanager (Nemosia pileata)." Neotropical Birds, February 11, 2011. http://dx.doi.org/10.2173/nb.hootan1.01.

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28

Threlkeld, Marguerite C., and Kevin J. Burns. "Magpie Tanager (Cissopis leverianus)." Neotropical Birds, May 17, 2013. http://dx.doi.org/10.2173/nb.magtan2.01.

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29

Schepps, Cara E., and Kevin J. Burns. "Masked Tanager (Tangara nigrocincta)." Neotropical Birds, September 15, 2010. http://dx.doi.org/10.2173/nb.mastan1.01.

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30

Berneberg, Nikki L., and Kevin J. Burns. "Paradise Tanager (Tangara chilensis)." Neotropical Birds, December 16, 2011. http://dx.doi.org/10.2173/nb.partan1.01.

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31

Villalobos, M., and Kevin J. Burns. "Silvery Tanager (Tangara viridicollis)." Neotropical Birds, March 9, 2012. http://dx.doi.org/10.2173/nb.siltan1.01.

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32

Harvey, Michael G. "Sira Tanager (Tangara phillipsi)." Neotropical Birds, August 13, 2009. http://dx.doi.org/10.2173/nb.sirtan1.01.

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33

Mason, Nicholas A., and Kevin J. Burns. "Speckled Tanager (Ixothraupis guttata)." Neotropical Birds, September 9, 2010. http://dx.doi.org/10.2173/nb.spetan1.01.

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34

Pansacula, Aileen, and Kevin J. Burns. "Spotted Tanager (Ixothraupis punctata)." Neotropical Birds, February 10, 2012. http://dx.doi.org/10.2173/nb.spotan1.01.

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35

Hart, Jennifer, and Kevin J. Burns. "Turquoise Tanager (Tangara mexicana)." Neotropical Birds, January 7, 2011. http://dx.doi.org/10.2173/nb.turtan1.01.

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36

Batiari, Lila, Casey H. Richart, and Kevin J. Burns. "Vermilion Tanager (Calochaetes coccineus)." Neotropical Birds, October 7, 2016. http://dx.doi.org/10.2173/nb.vertan1.01.

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37

Lawrence, Ferne. "Summer tanager at Valeport." Blue Jay 56, no. 2 (June 1, 1998). http://dx.doi.org/10.29173/bluejay5776.

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38

Boesman, Peter F. D. "386. Notes on the vocalizations of Northern Hepatic-tanager (Piranga hepatica), Highland Hepatic-tanager (Piranga lutea) and Lowland Hepatic-tanager (Piranga flava)." Ornithological Notes, July 29, 2016. http://dx.doi.org/10.2173/bow-on.100386.

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39

Eisermann, Knut. "Azure-rumped Tanager (Tangara cabanisi)." Neotropical Birds, March 18, 2011. http://dx.doi.org/10.2173/nb.azrtan1.01.

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40

Burns, Kevin J., and Cyndarienne Mireles. "Bay-headed Tanager (Tangara gyrola)." Neotropical Birds, September 27, 2010. http://dx.doi.org/10.2173/nb.bahtan1.01.

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41

Ruiz, Dalia Ruiz, and Kevin J. Burns. "Beryl-spangled Tanager (Tangara nigroviridis)." Neotropical Birds, March 2, 2012. http://dx.doi.org/10.2173/nb.bestan1.01.

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42

Wauer, Josh, Erik R. Funk, Casey H. Richart, and Kevin J. Burns. "Black-bellied Tanager (Ramphocelus melanogaster)." Neotropical Birds, June 2, 2017. http://dx.doi.org/10.2173/nb.bkbtan1.01.

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43

Woodward, Melody, and Guy M. Kirwan. "Blue-browed Tanager (Tangara cyanotis)." Neotropical Birds, February 24, 2012. http://dx.doi.org/10.2173/nb.blbtan3.01.

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44

Emata, Kristen, and Kevin J. Burns. "Black-capped Tanager (Tangara heinei)." Neotropical Birds, December 2, 2011. http://dx.doi.org/10.2173/nb.blctan1.01.

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45

Perroud, M., and Kevin J. Burns. "Black-faced Tanager (Schistochlamys melanopis)." Neotropical Birds, September 3, 2010. http://dx.doi.org/10.2173/nb.blftan1.01.

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46

Alnqshabandi, Shireen, and Kevin J. Burns. "Blue-necked Tanager (Tangara cyanicollis)." Neotropical Birds, June 1, 2012. http://dx.doi.org/10.2173/nb.blntan1.01.

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47

Morris, Megan, and Kevin J. Burns. "Brassy-breasted Tanager (Tangara desmaresti)." Neotropical Birds, January 27, 2012. http://dx.doi.org/10.2173/nb.brbtan1.01.

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48

Carlson, David, and Kevin J. Burns. "Burnished-buff Tanager (Tangara cayana)." Neotropical Birds, January 6, 2012. http://dx.doi.org/10.2173/nb.bubtan2.01.

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49

Ocampo, David, and Alejandro Montoya. "Dusky-faced Tanager (Mitrospingus cassinii)." Neotropical Birds, April 11, 2014. http://dx.doi.org/10.2173/nb.duftan1.01.

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50

Gonzales, Kim, Casey H. Richart, and Kevin J. Burns. "Fawn-breasted Tanager (Pipraeidea melanonota)." Neotropical Birds, August 14, 2015. http://dx.doi.org/10.2173/nb.fabtan1.01.

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