Why Do Migratory Birds Sing on Their Tropical Wintering Grounds?

How Do Birds Sing?

Predicting Occupancy of Wintering Migratory Birds: Is Microhabitat Information Necessary?

Information regarding microhabitat, here defined as small-scale vegetation structure, is often useful in predicting use of habitat by birds. Quantifying microhabitat, however, is expensive and labor intensive compared to assessment of habitat at a larger scale, possibly from remotely sensed imagery. To assess the importance of microhabitat information in constructing predictive models of habita...

How do birds sing? : sound analysis - mechanical modelling - muscular control

Communication is a main key to survival. Many animals use sound to exchange information, which is important in species recognition, sexual selection and consequently in speciation. The animals best known for their vocal virtuosity are birds, which use acoustic signals extensively to communicate. Bird song supplies an important model in the study of learned vocal communication including human sp...

Disentangling Migratory Routes and Wintering Grounds of Iberian Near-Threatened European Rollers Coracias garrulus

Long-distance migrants are suffering drastic declines in the last decades. Causes beneath this problem are complex due to the wide spatial and temporal scale involved. We aim to reveal migratory routes, stopover areas, wintering grounds, and migratory strategies for the most southwestern populations of the near-threatened European Roller Coracias garrulus in order to identify conservation key a...

Connecting the Wintering and Breeding Sites of Migratory Songbirds Using New Isotopic and Genetic Methods

Scientists and birdwatchers alike have noted precipitous population declines in many species of migratory songbirds during the last thirty years. However, the transitory nature of migratory birds makes it difficult to pinpoint the exact cause of these declines. Some postulate that habitat loss on the tropical wintering grounds is the cause, while others suggest that forest degradation on the te...