Stores of supplies, cached by someone. Can be seeds, fruit, animals. Can be hidden or exposed.
Top prize is to be able to ID both the prey and the cacher.
Many animals store food for poor times. Or to display them to impress the gals. The fun thing about caches is that they often sample species that are not present at any particular season, or were just passing through.
If you know of a cache, it is well worth repeat visits.
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What about pieces of plastic rolled up and impaled on the thorn of a vachelia tree ?
How often do shrikes impale human rubbish ?
Can bits of non-living syntheic material be included in this project ?
Can a piece of plastic or something shiny stuck on a thorn by an enterprising shrike impress the hard-to-get females more than a boring run-of -the-mill impaled beetle. Perhaps the shrike is hoping the pastic becomes more digestible if it hung out in the sun for a week.
Just post it under the shrike with notes. Or post it as the shrike. no need for an interaction.
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