Blue Grosbeak (Passerina caerulea) Science Article 1 abstract Plumage blueness in Blue Grosbeaks (Passerina caerulea) is related to nutritional conditionduring molt, and bluer males hold larger territories with more food resources. We tested the hypothesis that females use male plumage brightness as a criterion in choosing mates. In a mate-choice aviary, we presented females with […]
Tag: Blue Grosbeak
Effects of breeding density and plumagecoloration on mate guarding and cuckoldry in bluegrosbeaks (Passerina caerulea)
Blue Grosbeak (Passerina caerulea) Science Article 3 abstract For species in which females mate outside of the pair bond, selection should favor male mate-guarding behaviors that minimize investment in genetically unrelated offspring. Mate guarding may impose costs by diverting time and energy from activities such as foraging and seeking extra-pair copulations, so males should adjust […]
Blue Grosbeak (Passerina caerulea)
[order] PASSERIFORMES | [family] Cardinalidae | [latin] Passerina caerulea | [UK] Blue Grosbeak | [FR] Gros-bec bleu | [DE] Azurbischof | [ES] | [NL] Blauwe Bisschop Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Passerina caerulea NA, MA s USA to Costa Rica Passerina caerulea caerulea Passerina caerulea chiapensis Passerina caerulea […]