Peregrine info, please

To: "birding-aus (E-mail)" <>
Subject: Peregrine info, please
From: Jla <>
Date: Sun, 11 Aug 2019 15:26:23 +1000
Having watched a season of Peregrine nestcams in the USA (where the birds are migratory), I’ve shifted to the livecam in Orange (NSW) (& hope again to see the Collins St (Melb) nestcam come online soon too). 

The bird now occupying the ledge /nestbox in Orange appears so far to be the same individual. 
Sources I’ve read make various (global) conclusions about pairs & seasonal pairing-up complexities – My questions today circle about details of Australian Peregrine pairings:

– Would both birds be currently present within the home-/nest- range? – & Year-round?
– Whether or not this is so, if the bird currently on-cam is the same individual, in Australia is it first the male or the female which annually (– &/or year-round?) locates, & then takes this solitary possession of the eyrie?
   (US footage clearly shows males appearing to be v. uncomfortable in/on the nestscrape, avoiding the eggs, & “fleeing” the nestlings. While females remain with the brood at night, eyeshine shows the tiercel roosting elsewhere nearby.)
– Some sources indicate longevity of pairings: In Australia do we see same male+female breeding together at the same nest-ledge each year? – With/without annual pairing competition?
– The current Orange occupant is “swimming” shape into the stone nestscrape, a courting precursor which  you can see performed by both male & female in America (& post-breeding there also). If the bird in Orange now is the same / female, do the Aust. tiercels ever have this opportunity to “swim” the nestbowl stones…?

Probably my curiosity is getting a bit too detailed here. Sources I’ve checked, though, (& Debus’s hand-guide, for example,) are silent on these questions. Perhaps you-all out there could cite references on such finer detail locally?

Many thanks as always
SEQ 500m


<BR> Birding-Aus mailing list
<BR> To change settings or unsubscribe visit:
<Prev in Thread] Current Thread [Next in Thread>
  • Peregrine info, please, Jla <=

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU