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.
পরিযায়ী হওয়া শুরু করার আগে কয়েক দিনের জন্য কোন ধরনের পাখি মাটিতে অবতরণ করে?
smaller insectivorous birds