• Reproducción del cucarachero común (troglodytes aëdon, aves, troglodytidae) en el valle del cauca 

      Alvarez López, Humberto; Heredia Flórez, María Dolores; Hernández Pizarro, María Claudia
      The breeding biology of the Southern House Wren was investigated at 24 nests between may 1977 and february 1979 in the Cauca Valley (3°32' 20" N, 76° 31' 57" W, 976 m), Colombia. Eleven adults and 33 juveniles were banded ...
      Universidad Nacional de Colombia Revistas electrónicas UN Caldasia. 
    • La situación del tororoi pechicanela (grallaria haplonota, formicariidae) en colombia 

      Stiles Hurd, Frank Galfierd; Alvarez López, Humberto
      We present the first specimen records of Grallaria haplonota for Colombia, where it occurs between 1300 and 1700 m long the Pacific slope of the western Andes, north to Risaralda. Data on the ecology and vocalizations are ...
      Universidad Nacional de Colombia Revistas electrónicas UN Caldasia.