finding foragers like the ones you show for smaller birds is no easy task. I bought the ball shown and every treat just falls right out it is so big. of course the biggest treat I use is almonds and banana chips. I plan to donate it to a bird rescue near me since its useless for my little guys.
I have been looking at the blue one you posted but I'm worried it will be too easy and not fit the treats again.
I have been hiding bits in various shredder toys, that's all I can think of now. I just don't understand why they wont or don't make foragers for small/med birds.
Have you tried putting Popped Corn in it?
That should not fall out and a lot of birds like Popped Corn.
As for foraging. I do a few things. One is never change all the food dishes at any one time, so if they want to pick out things they have to look around.
But most importantly I give them foraging options . Like natural branches, if possible in flower. I will post some pics later.
Dandelion. ( and what I do is tie a paper towel and wrap foil around the stems to keep them alive a bit longer). This also works for Silver Beet.
Sow Thistle I pull up and put in a bucket of water to keep it alive.
Pic of Paperbark Gum.
They love these and they have the little seed pods like Bottlebrush.
Hang Sweetcorn cobs up.
Not sure what this is, but can you see Ricky in there? Foraging real time.
Just a few ideas.
As you see I like to keep it as natural as possible.