qt=2&tQ=A study of chickadees revealed that they have relatively good memories. What behavior led to this conclusion?&tC=Complex communication|Nesting|Scatter hoarding|Sleeping&cC=3&fB=Scatter hoarding is the storage of food items in countless locations over several acres of land. Scientists gave the birds seeds tagged with radioactive and magnetic materials to show that they store food, and return to collect it.<br><br>This, along with other studies, shows that the chickadees remembered where they stored their own food.