查看完整版本: Cuckoo Call Dates: 2012

Cuckoo Call Dates: 2012

[font=Helvetica][size=13.5pt]Cuckoo Call Dates : Spring 2012

[/size][/font][font=Helvetica][size=10.5pt]Thank you to those people who provided [b][color=red]dates[/color][/b] for [b][color=red]cuckoo[/color][/b] [b][color=red]call[/color][/b]s in the last few years  <  [url=http://www.hkbws.org.hk/BBS/viewthread.php?tid=1779&highlight=cuckoo%2Bcall][color=#0000ff] Previous Postings[/color][/url]  , [url=http://www.hkbws.org.hk/BBS/viewthread.php?tid=10169&highlight=cuckoo%2Bcall%2Bdates][color=#0000ff]2010 Postings[/color][/url] , [url=http://www.hkbws.org.hk/BBS/viewthread.php?tid=13326&extra=page%3D1][color=#800080]2011 Postings[/color][/url] >

For the coming 2012 spring period it would be great this practice continues and so once again please can members kindly report [b][color=red]dates[/color][/b] of first heard [b][color=red]cuckoo[/color][/b] [b][color=red]call[/color][/b]s on the BBS. Please note it is only the date of the first [b][color=red]call[/color][/b] in Hong Kong for each species which is needed; Common Koel, Plaintive Cuckoo, Large Hawk Cuckoo, and Hodgson's Hawk Cuckoo. i.e. there's no need to post up the 2nd/3rd.... [b][color=red]call[/color][/b] for each species.

Same as before, if any member can dig out [b][color=red]call[/color][/b] [b][color=red]dates[/color][/b] for any of the years between 1990 to 2003 it would be much appreciated.

Many thanks,

The Mai Po Team[/size][/font]

[font=Helvetica][size=10.5pt][size=2]A couple of basic graph is plotted with the above data.[/size][/size][/font]
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[font=Helvetica][size=10.5pt][img]http://farm8.staticflickr.com/7159/6775103759_f34c99477c.jpg[/img][/size][/font]



[font=Helvetica][size=10.5pt][font=Helvetica][size=10.5pt][size=2][img]http://farm8.staticflickr.com/7029/6775103857_dd7481c9e9.jpg[/img][/size][/size][/font][/size][/font]
[font=Helvetica][size=10.5pt][font=Helvetica][size=10.5pt][size=2][/size][/size][/font][/size][/font]
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[font=Helvetica][size=10.5pt][font=Helvetica][size=10.5pt][size=2]These graphs are only very early draft and include [u]ALL[/u] calling dates (include “warm-up” calls?) for these 2 species. [/size][/size][/font]
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[font=Helvetica][size=10.5pt][size=2]Conclusion is yet to be made but continuous collection of data would give us more clues.[/size][/size][/font]
[font=Helvetica][size=10.5pt][size=2] [/size][/size][/font]
[font=Helvetica][size=10.5pt][size=2]Katherine[/size][/size][/font]

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16-Jan-12 Koel @Hunghom

20-Jan-12 Koel @ Yuen Long

2012.01.27

Common Koel

Kwun Tong

20/1/2012        Indian Cuckoo        茅坪

6 March 2012, Lam Tsuen

6.15 am

Large Hawk Cuckoo x 2

Common Koel at Fanling 12:30 on 2012-03-06.

Plaintive Cuckoo singing at Sha Po 13 March 2012.

The report of Indian Cuckoo is interesting. These are not usually present until April - the latest bird report gives the earliest date on record as 10 March, so a January record would be exceptional. I've heard Black-throated Laughingthrush mimicking this speciesa few times - would that be a possibility in this case?

John,

I think you mean 10th April for the earliest Indian Cuckoo record in the latest HKBR.

But you're right. A January Indian Cuckoo is unprecedented. I've heard laughingthrushes imitate the calls of a number of [i]Cuculus [/i]species in HK, and I would imagine this is what happened in this case.

GeoffC

Actually Geoff, I did mean 10 March; I was referring to the earliest on record in the introductory text for the species. Even this seems exceptionally early to me. You are correct that the earliest recorded in 2007-08 was 10 April, which is a more typical date for the first record.

plaintive cuckoo @ fanling, 14 mar 12

17 Mar 2012 Tai Po
Large Hawk Cuckoo

17-3-2012 LV
Large Hawk Cuckoo

Plaintive calling in Lam Tsuen this morning, 18 March, at least three.  Mike Kilburn may have heard them before but these are the first I have heard calling properly.

Dylan

18-3-2012 LV
Large Hawk Cuckoo
Plaintive Cuckoo

Plaintive cuckoo

@Lau Fou Shan on 24 March 2012
@Yuen Long on 28 March 2012

31 March 2012 - TPK

2 Large Hawk Cuckoo calling

4 Large Hawk Cuckoos calling in Tai Tam yesterday early morning (with 2 Collared Scops Owls)
1 Large Hawk Cuckoo calling in Pat Sin Leng and 2 in West Buffalo Hill today

Hodgson's Hawk Cuckoo, Tin Liu Ha, Lam Tsuen 7.15pm 11 April 2012

Dylan

Indian Cuckoo - heard Mai Po - April 11th
Chestnut-winged Cuckoo - heard Yuen Leng Village, Tai Po - April 11th

David

9th April
Long Valley
Chestnut-winged Cuckoo
Plaintive Cuckoo
Large Hawk Cuckoo