White-eared Hummingbird cm; male c. 3·6 g, female c. 3·2 g. Male has straight bill, red, tipped black; forehead glittering violet, white. Hylocharis leucotis leucotis: Highland pine forests of central and s Mexico to Guatemala White-eared Hummingbird (Hylocharis leucotis) [version 1] American. Click here for more information about the Red List categories and criteria. Justification of Red List category. This species has a very large range, and hence does.
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Even though leuxotis individuals foraged inside the established territories during intraspecific interactions, intruders were eventually expelled. Our study provides additional information about a mechanism not previously evaluated in the Trochilidae, which deserves to be analyzed under controlled conditions.
Mechanisms of competition in tropical hummingbirds: Interference asymmetries among age-sex classes of rufous hummingbirds during migratory stopovers.
Show Details Hide Details. Year-round Migration Breeding Non-Breeding. Asymmetric territorial contests in the European robin: His crown and face hylochais violet and black. Field Study Permissions The following information was supplied hylocharks to field study approvals i.
Moreover, the only previously related study confirmed that male adults of Calypte anna and Archilochus alexandri always win their territory contests against juveniles. MyAvibase allows you to create and manage your own lifelists, and produce useful reports to help you plan your next birding excursion.
Our results showed that the identity of the intruder and the size and quality of the territory determined the result of the contests, but not the intensity of defense. However, residents of large territories with a high number of open flowers will tend hylochrais invest more by chasing and avoiding successful intrusions in order to exclude larger body size intruders i.
White-eared Hummingbird (Basilinna leucotis) – BirdLife species factsheet
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In Neotropical Birds Online T. Behavioral Ecology and Sociobiology. Conversely, at the intra-specific level conspecificswithin the same sex, body size can be a very important factor in the result of territorial fights Carpenter et al. The number of flowers in each of the 20 territories was counted around the time that each owner was observed. Trochilus leucotis Avibase ID: The average area and number of flowers within the territories were His throat is a metallic turquoise green. Closely related to B.
Temporal dynamics of flower use by hummingbirds in a highland temperate forest in Hjlocharis. To achieve this goal, we followed the established territories of males and analyzed the role of prior-residence in the result of territory conflict against conspecific and heterospecific intruders. Author information Article notes Copyright and License information Disclaimer. Sandlin Sandlin EA.
White-eared Hummingbird (Basilinna leucotis) | HBW Alive
Your sightings No sightings Add to a lifelist: Data analysis Since there can be more than one predictor affecting the probability that a resident wins contests against the intruders, we generated various generalized models logistic models leucootis a logit link and binomial error distribution describing the probabilities of victory for each recorded individual resident. Organization of a tropical guild of nectarivorous birds. Journal of Field Ornithology.
The undertail coverts are predominantly white.
Powers Powers DR. Kapoor Kapoor JA. White-eared Hummingbird Hylocharis leucotisversion 1.
No immediate threat recorded; however, parts of its forest habitat are under threat of Basilinna leucotis, Basilinna leucotis leucotis, Hylocharis leucotis, Trochilus leucotis Lithuanian: Lyon Lyon DL.
Contribute to Avibase Acknowledgements Flickr group Media stats Flickr group members Media wanted Translate Avibase is also available in the following languages: Descriptive notes 9—10 cm; male c. Thus, asymmetries in resident-intruder traits related to fighting ability i. From hawks and doves to self-consistent games of territorial behavior.
Influence of asymmetries in resource quality and age on aggression and dominance in black-chinned hummingbirds. National Center for Biotechnology InformationU.
Of these we recorded 55 chase events with conspecific intruders and 32 heterospecific ones.