Individual Electivity Index (EI) values suggested zone underuse whereas group EI suggested zone overuse. Group data suggested that flamingos were more consistent in their enclosure usage, with individual data showing wider overall usage of enclosures. Overall, there was little difference in preferred zone occupancy when flock data were compared to individual data. Counts of where each bird in the flock was located at each minute of sampling were compared against the number of minutes that randomly selected individual flamingos spent in each zone. Two flamingo flocks at two zoos were sampled with enclosures separated into discrete zones. We compared three formulae (traditional and modified Spread of Participation Index and Electivity Index) to determine how estimations of space usage compare between individuals and their group overall. Determining zone occupancy using group data may give an inaccurate assessment of enclosure suitability for each individual. All prints are made to order, so please allow up to.
Data on zoo enclosure usage provide meaningful evaluation of husbandry and welfare but for social species, group-level data may not capture individual occupancy preferences. All art prints are 8.5 x 11 and printed on high quality thick gloss paper.
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