… to learn one another’s contact calls. The present study examined this question by training
birds to produce calls under operant control and then changed the reference sound from one …

… When these same budgerigars were transferred to the sound isolation chamber used in
the … regarding vocal learning in budgerigars. Is the flow of auditory information into the …

… The budgerigars showed evidence of entrainment to external stimuli over a wide range of …
to the rhythm of budgerigars’ natural vocalizations. We suggest that vocal learning might have …

… efforts, budgerigars failed to learn to mimic a sound that they … complexity of vocal learning
and mimicry in budgerigars and … that typically accompany vocal learning in natural situations. …

… Here we use differential reinforcement to train birds to produce a … of visual and auditory
cues to vocal learning in these birds. … to associate different vocalizations with particular audio-…

… To elicit contact calls from the fledglings, we isolated up to 4 birds individually in small sound-…
The present study describes the development of vocal learning in budgerigars that are well …

… Birds were then audio- and video-recorded for 20 days (days 8–27) to track … young adult
and older adult budgerigars suggest that the open-ended vocal learning program, with respect …

… We chose this approach because budgerigars do not respond to audio or … vocal imitation
by male budgerigars influences the behavior of females and demonstrate that failure to learn …

… the budgerigars’ first adult sound the contact call, but budgerigar … vocalizations in budgerigars,
and other vocal learning birds, but until now, little was known about hearing in these birds. …

… of vocal learning [Kroodsma, 1982, 1996] and we will review some evidence from them here.
We shall focus on basic aspects of vocal learning and … Audio-vocal learning in a nonhuman …