Frequency-range discriminations and absolute pitch in black-capped chickadees (Poecile atricapillus), mountain chickadees (Poecile gambeli), and zebra finches (Taeniopygia guttata)
Publication/Journal: Journal of Comparative Psychology
Keywords: animal communication, animal vocalization, animals, auditory perception, female, finches, generalization, male, operant conditioning, pitch discrimination, seasons, songbirds, sound spectrography, species specificity, stimulus, transfer (psychology)
2006
Bird-mammal associations in forest openings of northern Congo (Brazzaville)
Publication/Journal: African Journal of Ecology
Keywords: birds, commensalism, congo, forest, mammals, symbiosis
1998
Lack of evidence for stress being caused to pigs by witnessing the slaughter of conspecifics
Publication/Journal: Animal Welfare
Keywords: animal welfare, pigs, slaughter, stress
1997
An assessment of stress caused in sheep by watching slaughter of other sheep
Publication/Journal: Animal Welfare
Keywords: animal welfare, sheep, slaughter, stress
1996