We have just returned from a quick trip to Kakadu tacked onto some work in Groote Eylandt. A leisurely part of the journey was a trip on the Corroboree Billabong. This was a very enjoyable trip largely thanks to the knowledge Ted Jackson (the guide) had of the behaviour of the local species and some of the individual birds. While we saw nothing we had not seen elsewhere on this trip it was more than made up for by Ted’s ability to get up close and personal with some species such as the Black-necked Stork and the life histories of the Sea-eagle pairs. An added bonus was there was no jumping crocodiles but rather some more serious explanations of these beasts and there behaviour.
What I found curious was a long-term pair of Sea-eagles who had part-reared two chicks. This appeared to be uncommon but perhaps what was more out of round was the chicks behaviour. The smaller of the two ( from memory they are about 4 days apart in hatching) was clearly preening the elder bird in the nest. N=1 or is relatively common behaviour?
Chris Lloyd
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