Most animals can distinguish between small quantities (less than four) innately. Many
animals can also distinguish between larger quantities after extensive training. However, the …

We quantified cache spacing patterns, cache retrieval rates and rates of cache theft in New
Zealand robins, Petroica australis. In a field experiment we presented wild birds with a …

Highlights•Toutouwai are repeatable in numerous aspects of food-storing
behaviour.•Different measures of caching behaviour consistently correlate with one …

Most animals can discriminate between pairs of numbers that are each less than four without
training. However, North Island robins (Petroica longipes), a food-hoarding songbird …

Both cooperation and conflict between the sexes are commonplace in monogamous mating
systems. However, little is known about how cooperation and competition varies seasonally …

We presented monogamous pairs of New Zealand robins Petroica australis with a
superabundant supply of artificial prey and then observed birds re‐cache previously …

Social interactions are thought to be an important determinant of food hoarding behaviour in
birds. Theoretical work predicts that subordinate birds should cache more to offset losses to …

Hoarding or caching behaviour is a widely-used paradigm for examining a range of
cognitive processes in birds, such as social cognition and spatial memory. However, much is …

Competition for cache retrieval is hypothesised to influence food hoarding intensity.
Previous work has tested this hypothesis by evaluating food hoarding rates during foraging …

Winter is a challenging time for temperate insectivorous songbirds, due to colder
temperatures, reduced prey activity and shorter diurnal foraging times. For species that are …