Do songbirds incorporate photoperiod in their migratory programme during migration? - A comparison between a long distance migrant and a short-to-medium distance migrant
Avian migration is based on a genetically inherited, endogenous programme which encodes the spatio-temporal information necessary for naive individuals to perform their first migration. The mechanism responsible for the temporal aspect of migration includes both endogenous clocks and responses to external cues to generate timing programmes. Of all the external cues involved, photoperiod has the g
