ABSTRACT Migration is a global phenomenon shaping bird assemblages in response to seasonal climate variations. The Streamer‐tailed Tyrant ( Gubernetes yetapa ) is a Neotropical bird associated with wetlands. Although considered common across most of its range, its natural history remains poorly understood, and some authors have suggested it may exhibit migratory behaviour. This study aimed to (i) assess whether G. yetapa exhibits latitudinal, longitudinal, or elevational movements, (ii) compare distribution and environmental suitability between the breeding and non‐breeding periods, and (iii) evaluate whether the importance of wetness differs between periods. Using open‐access data, we analysed seasonal patterns in occurrence records, comparing breeding and non‐breeding periods. We also investigated the role of wetness and elevation in shaping the species' distribution. Our results provided no evidence of complete migration. We did not find significant variation in the number of records across ecoregions between breeding and non‐breeding periods, nor evidence of seasonal changes in latitude, longitude, wetness, and elevation. We detected differences in range size and environmental suitability between breeding and non‐breeding periods, mainly in the western portion of the species distribution. Our findings highlight the importance of addressing knowledge gaps in the species' natural history to avoid misinterpretations of its movement patterns. Furthermore, our results reinforce the value of open science data in tracking species movements, identifying key variables influencing species distribution, and informing conservation strategies. Our study also highlights the need to protect wetlands, as their degradation may impact the persistence of G. yetapa populations.
Wagener et al. (Sun,) studied this question.