Today I saw a few instances on jackdaws landing with a bottlecap already in their mouth. They were Westmalle and Leffe caps, so I think they are likely mine and this one is wet and may have come from the planters on the balcony railing. The birds have occasionally taken caps from the platform and dropped them there. 

The interesting bit is that they appear to be arriving with caps instead of landing empty-beaked and then looking for caps or butts to use.

https://cdn.hackaday.io/files/1847547904515136/VMFB-MC_13-23-17.mp4

I've also noticed that occasionally the deposit sensor misses a deposit. I think I need to adjust the placement a bit to make sure it sees everything that comes though. Things bounce around in the deposit tube on the way down and I think they sometimes bounce over the sensor's line of sight. I'll try to fix this in the next few days. 

Here's a persistent jackdaw sinking 3 caps before getting a peanut. I need to fix this.

https://cdn.hackaday.io/files/1847547904515136/VMFB-MC_11-49-08.mp4

And another bringing two bottlecaps, maybe just in case.

https://cdn.hackaday.io/files/1847547904515136/VMFB-MC_09-28-52.mp4