Cuckoos make themselves useful for their hosts, spraying an offensive odour at intruders that protects the nest. http://link.springer.com/chapter/10.1007/978-3-319-22026-0_20 …pic.twitter.com/7FnNmeYep6
6:21 AM - 23 Oct 2016
from Schweinfurt, Bayern
0 replies
2 retweets
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