K.  Eisermann, López, G., Berry, J., Lux, Jd. León, and Burge, A., ?Vocalisations and juvenile plumage of the Azure-rumped Tanager.?, Cotinga, vol. 33, pp. 23-26, 2011.

K.  Eisermann and Howell, S. N. G., ?Vocalizations of the Guatemalan Pygmy-Owl (Glaucidium cobanense).?, Journal of Raptor Research, vol. 45, pp. 304-314, 2011.

A.  Solano-Ugalde, ?Notes on the roosting site, foraging behaviour, and plumage crypsis of the Rufous Potoo (Nyctibius bracteatus) from the Ecuadorian Amazon?, Bolet{\'?n SAO, vol. 20, pp. 39-42, 2011.

S.  David and Londoño, G. A., ?First description of the nest of the Silvered Antbird (Sclateria naevia) with notes on eggs and nestlings?, Ornitologia Neotropical, vol. 22, pp. 307-311, 2011.

K.  Eisermann, Arbeiter, S., López, G., Avendaño, C., and Lux, Jd. León, ?Distribution, habitat use, and implications for the conservation of the globally threatened Azure-rumped Tanager Tangara cabanisi in Guatemala.?, Bird Conservation International, vol. 21, pp. 423-437, 2011.

J. A.  Chaves, Weir, J. T., and Smith, T. B., ?Diversification in Adelomyia hummingbirds follows Andean uplift?, Molecular Ecology, 2011.

S.  David, ?El nido y los huevos del Verderón Piquinegro (Cyclarhis nigrirostris)?, Ornitologia Colombiana, vol. 11, pp. 87-90, 2011.

J. A.  Chaves and Smith, T. B., ?Evolutionary patterns of diversification in the Andean hummingbird genus Adelomyia?, Molecular Phylogenetics and Evolution, vol. 60, pp. 207-218, 2011.

H. F.  Greeney and Juiña-J., M. E., ?First description of the nest of Undulated Antpitta Grallaria squamigera from south-west Ecuador?, Bulletin of the British Ornithologists? Club, vol. 131, pp. 67-69, 2011.

G. - G. {\c R. c}alves and Cuba, C. A. C., ?Infestation of thornbird nests (Passeriformes: Furnariidae) by Psammolestes tertius (Hemiptera: Reduviidae) across Brazilian Cerrado and Caatinga ecoregions?, Zoologia, vol. 28, pp. 411-414, 2011.

K.  Eisermann, Arbeiter, S., López, G., Avendaño, C., J. Lux, deLeón, Burge, A., A. Lux, deLeón, and Buchán, A., ?Nesting ecology of the Endangered Azure-rumped Tanager (Tangara cabanisi) in Guatemala.?, Ornitolog{\'?a Neotropical, vol. 22, pp. 39?57, 2011.

D.  Ocampo and Londoño, G. A., ?Nesting of the Fulvous-breasted Flatbill (Rhynchocyclus fulvipectus) in southeastern Peru?, Wilson Journal of Ornithology, vol. 123, pp. 618-624, 2011.

H. F.  Greeney, Martin, P. R., Gelis, R. A., Solano-Ugalde, A., Bonier, F., Freeman, B., and Miller, E. T., ?Notes on the breeding of high-Andean birds in northern Ecuador?, Bulletin of the British Ornithologists? Club, vol. 131, pp. 24-31, 2011.

A.  Solano-Ugalde, ?Notes on the distribution and natural history of bird species in the Chocó bioregion of Ecuador?, B. B.O.C., vol. 131, pp. 249-255, 2011.

A.  Solano-Ugalde, ?The Plate-billed Mountain Toucan (Andigena laminirostris) feeding on a Caecilia spp (Gymnophiona: Amphibia)?, Bolet{\'?n Sociedad Antioqueña de Ornitolog{\'?a., vol. Vol. XX, 2011.

H. F.  Greeney, ?Spotted Barbtail (Premnoplex brunnescens)?, Neotropical Birds Online, 2011.