View AbstractThe cosmopolitan bird family Corvidaecomprises of more than 120bird species including crows, ravens,
rooks, jackdaws, jays, magpies, treepies, choughs and nutcrackers. They are medium to large size birds
which are found worldwide except for the tip of South America and the polar ice caps. They do not
migrate significantly and adjust their range-use to the availability of resources.Here, we present various
behavioural studies to synthesize the literature regarding the intelligence and feeding ecology of corvids,
their scatter hoarding behaviour and various steps involved in this behaviour. We also discuss, via
examples, some ecosystem services provided by corvids. The innovation and creativity of corvids is
describedvia their memorization abilities, feeding skills, group behaviour and use of tools (for example,
bending of wires for foraging). To preventstealing of their caches, Corvids keep track of observing
conspecifics, employ various caching and recaching approaches and exploit environmental agents to
minimize their quantity of auditory and visual information available tothem (conspecifics). They infer
mental state of their conspecifics via process driven simulation, accomplished by running of non-verbal
and non-linguistic multimodal rules. They are omnivorous and their diet consists of various invertebrates,
nestlings of other birds, small mammals, fruits, seeds and carrion.They areregarded as the key functional
species for regeneration and maintenance of forests, through seed dispersal.Seed dispersal is
accomplished by means of a unique “scatter-hoarding” behaviour.Because of their seed dispersal
services, corvids could work as an important and efficient habitat restoration tool.