birding-aus
-----Original Message-----
From: Philip A Veerman <>
To: Michael Todd <>
Date: Friday, 5 February 1999 16:53
Subject: Re: Dawn chorus
>Yes, and my report on the effects of the Total Solar Eclipse over Victoria
>on 23-10-1976. Aust. Bird Watcher 9(6):179-209 demonstrated how birds
>responded to a false dawn in the late afternoon, with pseudo dawn chorus.
>(This has often been alleged elsewhere from small amounts of data but my
>paper was based on a larger than usual study - approx. 150 reports.)
>-----Original Message-----
>From: Michael Todd <>
>To: David Geering <>;
><>
>Date: Friday, 5 February 1999 16:09
>Subject: Re: birding-aus Re: Early birds
>
>
>>birding-aus
>>
>>Hello everyone,
>>
>>For those that are interested there were a couple of very interesting
>>articles published in the Emu and Corella by Allen Keast about 5 years ago
>>about what time certain birds rose in the morning and on calling
behaviour.
>>The articles are:
>>
>>A. Keast. Temporal vocalisation patterns in members of a eucalypt forest
>>bird community: the effects of weather on song production. Emu 94
>>(3):172-180, 1994.
>>
>>A. Keast. The dawn chorus in a eucalypt forest bird community, seasonal
>>shifts in timing and contribution of individual species. Corella 18
>>(5):133-140, 1994.
>>
>>Mick
>>
>>Michael Todd
>>Finch Researcher,
>>Dept.of Environment and Heritage,
>>Pormpuraaw, Qld, Australia, 4871
>>
>>-----Original Message-----
>>From: David Geering <>
>>To: <>
>>Date: Wednesday, 3 February 1999 8:45
>>Subject: birding-aus Re: Early birds
>>
>>
>>>birding-aus
>>>
>>>
>>>Carol
>>>
>>>I suggest that early calling birds are not necessarily feeding but
calling
>>>from their roost site (or perhaps nearby - don't want to tell everyone
>>>where you sleep I suppose). There are a number of theories about why
>birds
>>>call in a dawn chorus. Advertising their territory one good explanation,
>>>sounding of the roll call another - Oh dear! Ralph the Catbird died in
his
>>>sleep!!
>>>
>>>My experience of regularly camping in the northern NSW rainforests are
>that
>>>the early callers are Eastern Yellow Robin, Bassian and Russet-tailed
>>>Thrush, Catbird and Logrunners. Many years ago I placed a tape record in
>a
>>>rainforest gully to get a recording of the dawn chorus and then went back
>>>to bed. The result was impressive - from silence to a gradual, but
fairly
>>>quick, increase in the number of species calling. A Russet-tailed Thrush
>>>gradually came closer and closer until I swear that it was just in front
>of
>>>the microphone. Obviously this species is on the move early.
>>>
>>>While setting mist-nests in rainforest, often in the half dark, it was
not
>>>unusual to catch birds before the net was on the second set of poles.
>>>These were often Lewin's Honeyeaters. Guess that the early bird also
gets
>>>the early fruit, at least you get your fair share. Other early movers
are
>>>the thrushes and Catbirds. If I was going to catch a Catbird it was
>almost
>>>invariably first thing before sunrise. This might merely reflect that
>they
>>>move lower early in the day but they were on the move before full light.
>>>
>>>David
>>>
>>>
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>>
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