Dawn chorus interpretation differs when using songs or calls: the Dupont's Lark Chersophilus duponti case.

ABSTRACT:

Background

Territorial songbirds vocalise intensively before sunrise and then decrease their vocal activity. This creates a communication network that disseminates essential information for both males and females. The function of dawn chorus in birds has been frequently interpreted according to seasonal variation of singing as the breeding season advances, but potential differences in seasonal variation of song and calls for the same species have not been taken into account.

Methods

We chose Dupont's Lark as a model species to study whether the seasonal pattern of dawn chorus differs between singing and calling activity, because in this species most daily songs and calls are uttered at dawn. We registered vocal activity of Dupont's Lark before and around dawn in three differ

SUBMITTER: Perez-Granados C 

PROVIDER: S-EPMC6054861 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature