Lesser-grey Shrike and 30 Blue-cheeked Bee-eaters

On my way back from checking the BCBs this morning I crossed paths with my first Lesser-grey Shrike of the season. We should be about half way through the first wave of these migrants so I've been expecting them for a few days now.

BCB numbers rose to 30 yesterday evening. Here's a short video of four of them.

While I was watching the Purple Swamphens I heard a strange high pitched trilling - searched for the source and was very surprised to see this bat hawking for insects. I don't know what species it is. Any suggestions are welcome.