Grey-rumped Treeswift Flocks - Bird Ecology Study Group
Grey-rumped Treeswift Hemiprocne longipennis are not uncommon birds in the forest around Ipoh, Perak, Malaysia. Looking back at my records (40) I| Bird Ecology Study Group
Grey-rumped Treeswift Hemiprocne longipennis are not uncommon birds in the forest around Ipoh, Perak, Malaysia. Looking back at my records (40) I| Bird Ecology Study Group
