Animal migration has been the subject of intensive research for more than a century, but
most research has focused on long‐distance rather than short‐distance migration. Altitudinal …

Altitudinal bird migration involves annual seasonal movements up and down elevational
gradients. Despite the fact that species from montane avifaunas worldwide engage in …

Altitudinal migration is a common and important but understudied behavior in birds. Difficulty
in characterizing avian altitudinal migration has prevented a comprehensive understanding …

Taxonomic and geographic biases in ecological research are widely recognised. In addition,
information bias within a species can impact our understanding of their biology. This can …

Understanding causes of death can aid management and recovery of endangered bird
populations. Toward those ends, we systematically examined 300 carcasses of endangered …

Background Altitudinal migration systems are poorly understood. Recent advances in
animal telemetry which enables tracking of migrants across their annual cycles will help …

After a severe population reduction during the mid-20th century, the endangered Hawaiian
Goose (Branta sandvicensis), or Nēnē, has only recently re-established its seasonal …

We outfitted six male Hawaiian geese, or nene (Branta sandvicensis), with 45-g solar-
powered satellite transmitters and collected four location coordinates d− 1 from 2010 to …

There are no high mountains in Hungary, but in winter several montane species visit from
the Alps and the Carpathians. Here, we used data from an internet database and a detailed …

Relative to long-distance migrants, altitudinal migrants have been understudied, perhaps
because of a perception that their migrations are less complex and therefore easier to …