those birds are definitely not gonna be swiftlets. Swifts and swiftlets are placed in a bird family known as Apodidae, which means “feetless” in Latin, they do have a pair of feet but this family is develop to fly in the air to catch insects and hence their feet are very small and weak, so they couldn’t land, the best they can is to use their strong claws to hang on to cliffs or other similar structures upside down. On the other hand, all their four toes pointed forward that doesn’t allow them to grasp on to some thing like humans hand or other birds, most other birds have 3 toes pointing forward and 1 backward allowing to grasp on to a stick or wyreline or branch.

According to the silhouette, its quite hard to tell what are these birds perching outside the window, but a few of them showed a pretty long tail and according to eunice, the birds are noisily chirping outside. The most possible bird to chirp and perch in this manner is the Eurasian Tree Sparrow.

The Ipoh Railway Station even looks greater and more beautiful thru your eyes ! ( As an Ipohite , I can’t even do that ! )

I also like the last pictures with birds perching on the window grilles !

@peteformation: Thanks.. er? Do you think they are swiftlets? I thought the pic isn’t clear enough to distinguish that. Haha hope they make bird nests outside the house!