Mx Autumn 
I put fat balls out on Monday and normally they are gone by Wednesday but appear to have been untouched. Do birds not eat them in the summer/autumn or has something weird happened to my local bird population?
Sep 19, 2024 at 6:42amWeb
Show threadvga256Sep 19, 2024

@carbontwelve yep. they generally start eating fat in the late fall and winter when they have a hard time staying warm and food reserves are low.

(and besides: right now is caching season - fat stores poorly!)

Show threadMx Autumn Sep 19, 2024
@vga256 that makes sense. I hadn't put any out during the Summer because I had ran out in late Spring.
Show threadAdrian Tepes ​Sep 19, 2024
@carbontwelve it's migration season so you might get new different birds for a while depending on where you live
Show threadMx Autumn Sep 19, 2024
@adriantepes that's true. I normally see hundreds of starlings but they are likely over in Europe atm.