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Hello,
It seems that the Pythagoreans are\were not the
only ones to attribute special properties to the number three. So for them here
are some recent sightings of three.
3 Whistlers in my yard this morning. Only the
Rufous is resident. Golden come rarely and Grey come to feed on the larvae of
Aristolocia Swallowtails. As my vines are small this is the only place
I have seen Greys feeding on the ground. (see excellent review of their
behaviour by Lloyd Neilsen on this list)
3 Cuckoo-shrikes (what a horrid name) in the town
as I walked to the Post Office.
3 Doves on the lawn as I came inside an hour
ago.
3 Bowerbirds on one ridge last Friday.
3 Gallinules on the creek below the
house.
3 Parrots roosted in our Eucalypts last night. The
Lorikeets usually roost next door and the Fig Parrots will only roost here until
their pair bonding is complete and they start nesting in the Yungaburra State
Forest. Then they will visit to collect young Eucalypt shoots, presumably to
line their nests.
3 Tree-kangaroos in one night recently
3 Green Ringtail possums on the one branch at Fur
'n' Feathers Treehouses last Sunday.
I guess the last two don't count as they are
mammals and are three of the same species.
Carl Gauss did wonderful work on triangular numbers
in the 19th century. Does any one out there know who did the work on tetrahedral
numbers last century?
Regards,
Alan
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