Fw: [BIRDING-AUS] Are Freckled Ducks Nocturnal

To: "Messages Birding-aus" <>
Subject: Fw: [BIRDING-AUS] Are Freckled Ducks Nocturnal
From: "Bob Forsyth" <>
Date: Tue, 29 Feb 2000 12:25:21 +1000
Jim Davis wrote.....
 > In a book I am reading the author states that Freckled Ducks (S.naevosa)
 > feed at night because that is when the duck's food becomes available.
 > The author, however, fails to identify the food source.
 > Unfortunately, none of my in house references are of any help to
> confirm the author's statement.
 > I have two questions for the Birding-Aus group?
 > 1)  Are Freckled Ducks nocturnal?
 > 2)  What do they eat other than aquatic algae and invertebrates?
   .    .    .    .   .    .    .    .    .    .    .    .    .    .    .
 .    .    .
> I am making a list of desert-dwelling birds that feed at night other than
> owls and nightjars.  I have four species if I include the Freckle Duck.
> 1
> Freckled Duck
> Hanzab V1, Pt B,P1161 states
> "Feed by day and night, but nocturnal or crepuscular feeding typical and
> seems normal during breeding season "
> Reader's Digest CBoAB 2nd Ed 1st Revise states
> "During the day birds rest in dense cover, usually in deep water.
>  At night they fly silently out to the shallows to feed"
> FOOD.... Hanzab P1164 has 1/2 page very detailed info of oesophagas &
> gizzard contents that I suggest you should read but one extract is "the
> animals, thought to have been ingested accidentally, were crustaceans
> copepods, ostrocods; insects bugs......, beetles.......caddisfly larv;
> animals were sponges"
> H.J.Friths "Waterfowl in Aust" P 119 very much summarised states
> .....30% vol algae (most birds)
> .....20% seeds of smartweeds and docks (most)
> .....16% aquatic grasses inc barn-yard grass and water couch(60% of birds)
> .....  6%  insects  (most birds)
> .....11% animal food
> Other plant food included the seeds of many aquatic
> plants,sedges,nardoo,clovers.thistles(usually found in only 1 or 2
> Nicci Thompson(from Toowoomba) found a dead FD under power lines near
> our Mount Isa power station. We presume it flew into the lines at night
> 2
> The Plumed Whistling-Duck (previously also known as the Grass W-D)
> extends into the deserts.
> They cluster in groups near water during the day but often fly out to
> during the night (or move to the waters edge and dabble)
> 3
> (The elusive) NP
> Some ex cattle station people have related to me that they have seen a
> budgie" come into station dams to drink just on preparation for
> nights feeding ?

> 4
> Common Bronzewings wait near water till dusk to drink then sometimes wait
> till well after dark to drink.
> (I've seen 5 wait until 3/4 hour after dark at one location) Is it
> they may then have a snack before retiring ?
> I've read that they also drink before daybreak

> Regards...Bob Forsyth  

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