Departure of Koels

[Philip Veerman <>]

As for these comments. Suggestions such as shows most Koels migrating in the last 2 weeks of February although same stay on until the end of March.

These ideas are probably or likely to be true, however there are other options. If we know the individuals we could probably know that. However it is possible that given that the birds are basically north-south migrants, the birds that have had the summer here or born here may have left. Especially if there is a gap, we can’t rule out that late end of season birds are not other individuals who have come from further south and moving through after most have gone. As in those at end of March may not be long stayers. Same considerations apply to other species, like the Aust Hobby.

 

Philip

 

From: Ryu Callaway [
Sent: Tuesday, 8 March 2016 5:02 PM
To: COG Chat
Subject: Fw: [canberrabirds] Departure of Koels

 

 

----- Forwarded Message -----
From: Ryu Callaway <>
To: David Rosalky <>
Date: 2016/3/6, Sun 13:22
Subject: Re: [canberrabirds] Departure of Koels

 

Have a look at ebird's graph

http://ebird.org/ebird/australia/GuideMe?speciesCodes=asikoe3&amp;reportType=species&amp;bMonth=01&amp;bYear=1900&amp;eMonth=12&amp;eYear=2016&amp;parentState=AU-ACT&amp;countries=AU&amp;states=AU-ACT&amp;getLocations=states&amp;continue.x=25&amp;continue.y=3&amp;continue=t

You can compare years by changing it at the top. 

This graph shows most Koels migrating in the last 2 weeks of February although same stay on until the end of March.

 

Last year my last record from home last summer was 21/2/15 but I heard them from home this morning. I suspect the prolonged hot spell may be affecting their departure. 

 

Ryu