Animal Vocal Communication and Behavior

This study examines vocal exchange temporal patterns in Java sparrows, finding no significant difference between inter- and intra-individual intervals, contrasting with social mammals.

This paper models how juvenile zebra finches learn song through self-guided reinforcement learning by developing a neural circuit that generates internal error signals via predictive cancellation.

The paper investigates vocal development in acortical mouse pups and finds altered acoustic features and distress indicators, suggesting the cerebral cortex influences complex vocal behaviors.

The paper shows that auditory cortex in non-human primates encodes vocal feedback error through neural activity scaling with error magnitude and specificity to vocal frequencies.

The paper evaluates machine learning methods for caller identity classification in mammalian vocalizations, finding Mel-frequency cepstral coefficients and random forests provide consistent results across datasets.

This study uses song analysis to distinguish two cryptic giant hummingbird species and identifies their range limits.

The paper identifies Z chromosome genes whose expression is influenced by estrogen treatment and associated with vocal learning in female zebra finches.

The paper investigates how rocket frog aggression depends on the interaction between the vocal traits of territory-holders and mimicked intruders.

This paper introduces an automated method to identify individual birds by song, enabling multi-year recapture from acoustic data with 96% accuracy.

This study uses functional ultrasound imaging to map frequency-specific blood volume responses in crows' auditory telencephalon, revealing tonotopic organization and subregion specialization.

This study shows that both humans and budgerigars prefer pitch sequences with intermediate complexity, suggesting a shared cognitive preference that may relate to learning.

This study shows that deviations from stereotyped syllable sequences and timing in zebra finches do not reduce vocal learning and can even enhance it in later-developing birds.

The paper quantifies accelerando and crescendo in African penguin display songs, showing rhythmic acceleration and loudness increase with plasticity in tempo.

This study examines how female Western Australian magpies adjust their territorial song in response to anthropogenic noise, finding changes in rate and peak frequency but not amplitude or duration.

This paper develops a low-cost, mountable microphone system to identify individual mouse ultrasonic vocalizations during social interactions, achieving 90% accuracy using amplitude differences.

The paper tracks social interactions and vocalizations in wild house mice over 10 years, finding seasonal vocalization patterns linked to social group dynamics and pup presence.

This study shows that a complex acoustical environment is necessary for the development and maintenance of auditory circuits in zebra finches, as evidenced by neural deficits in birds raised in simpler environments.

The paper analyzes zebra finch song introductory notes and finds correlations between their acoustic features and song syllables, suggesting shared neural control but distinct timing mechanisms.

This study shows that respiratory vocal coordination improves with repeated introductory notes in zebra finches, suggesting these notes reflect motor preparation for song.

The paper introduces an unsupervised acoustic analysis method to identify landscape heterogeneity using sonotypes and graphical models, showing correlations with ecological metrics.

The paper examines how social structure influences vocal diversity in monk parakeets, finding age, nest mate number, and group size affect call diversity, while relatedness and affiliative bonds influence call similarity.

This study characterizes the songs and calls of the Vitelline Warbler, documenting vocal variation and ecological associations on Little Cayman Island.

The paper investigates frontal-auditory cortical interactions during vocal production in marmoset monkeys, finding that frontal areas send predictive signals to the auditory cortex before vocalization.

This study shows that nightingales imitate whistle syllable durations in real-time but adjust within their natural vocal range when exposed to novel stimuli.

This study shows nightingales adjust their songs in response to rivals, with neurons in HVC tuned to specific songs, enabling context-specific vocal responses.

This study investigates whether zebra finch introductory notes affect female response to song or juvenile learning, finding no influence on either.

The paper shows that African striped mice adjust their vocalizations based on social context, using different call types and temporal patterns depending on familiarity and sex of interacting individuals.

The paper examines how mating signal energy gradients influence gene flow in early avian speciation by analyzing 109 hybridizing species pairs.

This study examines how Galapagos yellow warblers adjust their song and aggression in response to traffic noise, finding differences based on proximity to roads and island location.

The paper evaluates a study claiming Japanese tits use an 'after you' gesture, finding variability in gesture frequency and response timing, suggesting caution in interpreting the claim.