Dr. Chalmers Mitchell had taken the records of the Zoological Gardens of London from 1870 to 1902 and analysed them to ascertain how long the animals and birds kept there survived. The website editor has extracted the statistics on the blue macaws as follows:-
No. of Av. duration Max. duration
Individuals in months in months
Anodorhynchus, whole genus 8 111 276
A. glaucus (Glaucous macaw) 1 107 107
A. hyacinthinus (Hyacinthine Macaw) 4 95 117
A. leari (Lear's Macaw) 3 134 276
Cyanopsittacus spixi (Spix's Macaw) 2 63.5 65
As the Glaucous Macaw was acquired in 1886, it survived almost nine years until 1895. One of the Lear's Macaws apparently managed to survive for 23 years at the London Zoo.
In this presentation Dr. Chalmers Mitchell referred to an article by J.H.Gurney entitled "On the Comparative Ages to which Birds live" published in The Ibis, Series 7, Vol. 5 in 1899. Gurney alleged that a Blue Macaw had lived 64 years according to an article in Revue et Magazine de Zoologiepublished in 1864 (Page 409). The website editor has read this article, but believes the macaw referred to is a Scarlet Macaw (Ara macao).
Monday 7th October 2019
Paper on breeding performance of the Lear's Macaw in the wild
I was recently sent a paper on the breeding performance of the Lear's Macaw in the wild. I was interested to read the comparison with other macaw species. The Lear's macaw has been quite prolific in captivity and it appears it is also prolifi ... Read More »
" Naturam expellas furca, tamen usque recurret "
( If you drive out nature with a pitchfork, she will soon find a way back)
Horace (65-8 BC)