Nest parasitism Welcome Swallows

Can anyone enlighten me about possible nest parasitism for Welcome Swallows. A pair raising a brood seemed to be doing well (they raised five last year), when three nestlings appear to have been turfed out. The parents are still attending the nest and I am loath to get up a ladder and peer in to see what is there, In case of adverse reactions. Any insights or data appreciated, Cheers Pat — Pat O’Malley, Faculty of Law University of Sydney NSW 2006 Australia 0404273392 (Mobile) pat.omalley@sydney.edu.au Sent from my iPad =============================== To unsubscribe from this mailing list, send the message: unsubscribe (in the body of the message, with no Subject line) to: birding-aus-request@vicnet.net.au http://birding-aus.org ===============================

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