Quantifying phenology and migratory behaviours of hummingbirds using single-site dynamics and mark-detection analyses.

ABSTRACT: Nuanced understanding of seasonal movements of partially migratory birds is paramount to species and habitat conservation. Using nascent statistical methods, we identified migratory strategies of birds outfitted with radio-frequency identification (RFID) tags detected at RFID feeders in two sites in California, USA. We quantified proportions of migrants and residents and the seasonal phenology for each movement strategy in Allen's and Anna's hummingbirds; we also validated our methodology by fitting our model to obligate migratory black-chinned hummingbirds. Allen's and Anna's hummingbirds exhibited characteristics of facultative migratory behaviour. We also quantified apparent annual survival for each migratory strategy and found that residents had significantly higher probabilities of ap

SUBMITTER: English SG 

PROVIDER: S-EPMC9470262 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature