Many of the smaller insectivorous birds including the warblers, hummingbirds and flycatchers migrate large distances, usually at night. They land in the morning and may feed for a few days before resuming their migration. The birds are referred to as passage migrants in the regions where they occur for short durations between the origin and destination. COUNT 4
QSN1 When do many insectivorous birds migrate? ANS1 usually at night QSN2 Which kinds of birds land for a few days before resuming migration? ANS2 smaller insectivorous birds QSN3 What are smaller insectivorous birds referred to? ANS3 passage migrants QSN4 How long do passage migrants stop and feed before resuming migration? ANS4 a few days