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H (Mfruhatt H- fCu It i'l ■ *^ r -:W W : 'JZjum ■&\ Cc*t' • w , (Mr MU^id , n / / «| id rjciMiti’ ■ r->J* y-T^— U • aw •* — *»<*•< I V 4 4 o -4. •-. ..1 *: ^ I t »'*.* ■►■' ♦ '' -« * • - — *■•*- - I 'JfiJSl 1 ; 1* — --- ■ • . , * >— >. i y . iV.fc. . .air r—~' *-** ~ • - — r* 7 ■ .. ■>., 4 iM /W/£ K< cu-Uj (J «u •> ( ■* * < — - ^Ti'T/ < 1 I RIJKS MUSEUM VAN NATUURLIJKE HISTORIE'"' RAAMSTEEG 2, LEIDEN, NEDERLAND — TELEFOON 071*14 38 44 COR RESPONDENTIE-ADRES : POSTBUS 9517, 2300 RA LEIDEN Dr. H • H# Moynihan Smithsonian Tropical Research Institute Box 2072 Balboa Panama Kanaal Zone Leiden, June 12 th 1979 , Dear Dr, Moynihan, There is very little I can tell you about Halcyon smyrn ensis in addition to the information contained, in my last letter, but it seems indeed clear to me that in both Sumatra and Java the species is a new coloni st . In the large collections made in Deli in the early years of this century (1912-1915) by Dr. i.L. de Bussy (published 1919, by de Beaufort do s y » -ijdr. Dierk. 21: 229-276; more unpublished material in our collection) there is no mention of II. smyrnensis . although nine species of Alcedinidae were collected. Yet, Baron van Lynden, thirty years later, calleu it the commonest kingfisher in the same region. Surely this indi- cates, yes practically proves, recent colonisation. In the article mentioned above, de Bussy makes an interesting remark m the discussion of H.. chloris , of which I give here a free translation: "This species is very common everywhere along the coast.... for many years J have never seen it far from the coast, such in strong contrast to" its behaviour in Java, where for example near Buitenzorg, not to mention many 0 J.er places, it is numerous. In 1915, however, to my surprise, I disco- vered it in the Highlands in the neighbourhood of Kaban Djahe, hence far lnto ^be interior. This distribution is peculiar as the species docs not arpear to occur in the intervening country". From this it would appear tnat 1U the Bussy ’s time H . chloris did not occur in the cultivated low- lands iwhefee indeed it is common in Java). This may be connected with the fact that colonisation of Deli by tobacco planters began only about i860 or 1 , in what previously was heavy forest. Open cultivated country must have been a new habitat in Deli, that in the Bussy’ s time had not yet been colonized by ii. chloris, and this may possibly have given H. smyrnensis its opportunity. You will realize that this is only speculation, as I have no personal experience in Deli. Did you see H. chloris there? We8t tIava is ornithologically so well-known, that I am sure that if £l. smyrnensis ever occurred there as more than a rare straggler, it would nave been recorded. Even now there is only this single case of breeding known so that the species can hardly be said to be established in Java. Its appearance is even more recent than in Sumatra. In this case the ex- planation suggested above for Sumatra, that there was an open niche avail- able, is invalid as in Java H. chloris is common in cultivated country. p. 2 RIJKSMUSEUM VAN NATUURLIJKE HISTORIE RAAMSTEEG 2, LEIDEN, NEDERLAND — TELEFOON 071-14 38 44 CORRESPONDENTIE-ADRES : POSTBUS 9517, 2300 RA LEIDEN - 2 - Leiden, Conclusion: H. smyrnensis colonized eastern Sumatra (Deli) about sixty years ago, following forest clearing and other human activities. In Java there is even now no evidence that it has actually settled and further developments must be awaited. You could ask Wells how the spe- cies H. chloris and H. smyrnensis interact in Malaya. Yours sincerely, G. F. Mees May 18, 1979 Dr, G.F. Mees Rijksmuseum van Natuurlijke Historie Raamsteeg 2 Fostbus 9517,2300 RA Leiden, Nederland Dear Dr. Mees: Thank you for your letter of May 2nd with the information on Halcyon smyrnensis in Sumatra and Java. It was very helpful indeed. tion among species (with all the behavioral interactions involved). I wonder, therefore, how the relations between smyrnensis and other Halcyon kingfishers, especially chloris, will eventually evolve (or settle down) in Sumatra. In this context, it would be useful to know if the Sumatran smyrnensis are relatively recent invaders or a relict of some earlier, Pleistocene or post-Pleistocene, expansion. Dw you know of any data that would be relevant to this question? 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