Tarwater, Corey E.; Beissinger, Steven R. (2012-11-01). "Dispersal polymorphisms from natal phenotype–environment interactions have carry-over effects on lifetime reproductive success of a tropical parrot". Ecology Letters. 15 (11): 1218–1229. doi:10.1111/j.1461-0248.2012.01843.x. ISSN1461-0248. PMID22906164.
Kattan, Gustavo H.; Gómez, Natalia (1992-01-01). "Body Temperature of Spectacled Parrotlet Nestlings in Relation to Body Mass and Brood Size". The Condor. 94 (1): 280–282. doi:10.2307/1368818. JSTOR1368818.
Wanker, Ralf; Apcin, Jasmin; Jennerjahn, Bert; Waibel, Birte (1998). "Discrimination of different social companions in spectacled parrotlets (Forpus conspicillatus): evidence for individual vocal recognition". Behavioral Ecology and Sociobiology. 43 (3): 197–202. doi:10.1007/s002650050481. ISSN0340-5443. S2CID33379097.
Wanker, Ralf; Sugama, Yasuko; Prinage, Sabine (2005-07-01). "Vocal labelling of family members in spectacled parrotlets, Forpus conspicillatus". Animal Behaviour. 70 (1): 111–118. doi:10.1016/j.anbehav.2004.09.022. S2CID53158653.
Walløe, Solveig; Thomsen, Heidi; Balsby, Thorsten J.; Dabelsteen, Torben (2015-07-27). "Differences in short-term vocal learning in parrots, a comparative study". Behaviour. 152 (11): 1433–1461. doi:10.1163/1568539X-00003286. ISSN1568-539X.
Kattan, Gustavo H.; Gómez, Natalia (1992-01-01). "Body Temperature of Spectacled Parrotlet Nestlings in Relation to Body Mass and Brood Size". The Condor. 94 (1): 280–282. doi:10.2307/1368818. JSTOR1368818.
justusparrotlets.com
"Cage Size for Parrotlet". Just Us Parrotlets Home of the Pacific and Speculated Parrotlets. Retrieved 2016-10-13.
nih.gov
pubmed.ncbi.nlm.nih.gov
Tarwater, Corey E.; Beissinger, Steven R. (2012-11-01). "Dispersal polymorphisms from natal phenotype–environment interactions have carry-over effects on lifetime reproductive success of a tropical parrot". Ecology Letters. 15 (11): 1218–1229. doi:10.1111/j.1461-0248.2012.01843.x. ISSN1461-0248. PMID22906164.
Wanker, Ralf; Apcin, Jasmin; Jennerjahn, Bert; Waibel, Birte (1998). "Discrimination of different social companions in spectacled parrotlets (Forpus conspicillatus): evidence for individual vocal recognition". Behavioral Ecology and Sociobiology. 43 (3): 197–202. doi:10.1007/s002650050481. ISSN0340-5443. S2CID33379097.
Wanker, Ralf; Sugama, Yasuko; Prinage, Sabine (2005-07-01). "Vocal labelling of family members in spectacled parrotlets, Forpus conspicillatus". Animal Behaviour. 70 (1): 111–118. doi:10.1016/j.anbehav.2004.09.022. S2CID53158653.
worldcat.org
search.worldcat.org
Tarwater, Corey E.; Beissinger, Steven R. (2012-11-01). "Dispersal polymorphisms from natal phenotype–environment interactions have carry-over effects on lifetime reproductive success of a tropical parrot". Ecology Letters. 15 (11): 1218–1229. doi:10.1111/j.1461-0248.2012.01843.x. ISSN1461-0248. PMID22906164.
Wanker, Ralf; Apcin, Jasmin; Jennerjahn, Bert; Waibel, Birte (1998). "Discrimination of different social companions in spectacled parrotlets (Forpus conspicillatus): evidence for individual vocal recognition". Behavioral Ecology and Sociobiology. 43 (3): 197–202. doi:10.1007/s002650050481. ISSN0340-5443. S2CID33379097.
Walløe, Solveig; Thomsen, Heidi; Balsby, Thorsten J.; Dabelsteen, Torben (2015-07-27). "Differences in short-term vocal learning in parrots, a comparative study". Behaviour. 152 (11): 1433–1461. doi:10.1163/1568539X-00003286. ISSN1568-539X.