Presentation Details
| The night watch: assessing the 24-hour activity patterns of zoo-housed tawny frogmouths Natasha Wierzal, Jason Wark, Nicole Finch-Mason. Lincoln Park Zoo, Chicago, IL, USA |
Abstract
Tawny frogmouths (Podargus strigoides) are a nocturnal bird commonly found in zoos worldwide. However, frogmouths, like other nocturnal species in zoos, are typically cared for during the day which can lead to circadian rhythm disruptions. Chronic circadian rhythm disruption can lead to many health problems, increased stress, and impaired welfare. In this study, 4 frogmouths were monitored over 24 hours for multiple days to assess if husbandry changes could improve their 24-hour activity patterns and therefore, likely improve their welfare. The first husbandry change implemented was shifting exhibit servicing times to as early or late in the day as possible for keeper schedules. The second change was to shift the majority of the frogmouths diet to timed feeders which opened overnight. Shifting servicing time did lead to slight changes in activity patterns, with frogmouths resting more during the day and more alert at night. Implementing timed feeders overnight further strengthened this trend. Space use patterns also became more varied. The changes observed indicate improved circadian rhythm synchronization with the frogmouths’ nocturnality, likely improving their welfare.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.
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