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Supplement to the article

Observations on White-browed Guan Penelope jacucaca
in north-east Brazil


by H. Redies, 2013, Cotinga 35:61-68 OL (download).

To access our main page about the White-browed Guan, click here.


ERRATA

1. Wing-whirring. The wing-whirrs in Fig.  9 and in recordings R150 and R160 were possibly from Penelope superciliaris and not from Penelope jacucaca.

2. Roosting behaviour. After publication of the article, I made several new observations of roosting behaviour of P. jacucaca which indicate that section "Roosting" (p. 66 of OL edition) is not entirely correct.

2a. I flushed guans, probably White-browed Guans, at night from low vegetation close to the ground. This suggests that they may sometimes roost at altitudes less than "a few meters above the ground".

2b. I wrote that "..in the late afternoon of 20 July 2010, I observed two groups at Gameleiras, settling themselves in two different trees, c.30m apart. Vocalizations recorded at the time (mp3 R130, mp3 R140) were reminiscent of those at dawn, when arriving to feed". When I wrote the article, I assumed that these trees were the night roosts. However, further observations of similar scenes in early evening at GAM showed that the guans, after loudly vocalizing in the trees around GAM, moved inconspicuously and in relative silence to locations at least 50 meters away, which is presumably where the nocturnal roosts really were.

Sound recordings R130, R140, R150, and R160 were taken down.

Hernann Redies, 19. March 2015.

Photos

P01 - iris color brown (female?)
P02 - iris color red (male?)
P03 - intermediate iris color

P04 - two juveniles on feeding place
P05 - juvenile in detail
P06 - juvenile on tree, 18 days after photos P04/P05 were made


Sounds

All recordings were made in Mãe-da-lua private reserve in Itapajé, Ceará. For further explanation, see article "Observations on White-browed Guan Penelope jacucaca...", Cotinga 35:61-68 OL (download).

The sounds listed below are copyrighted. Download is permitted for private purposes only. All other use, e.g. for scientific publications, only with written permission of the author Hermann Redies (hredies at mae-da-lua.org).

10-Sep-2010, 05h12. RPPN Mãe-da-lua, Itapajé, Ceará, Brazil. h1585. (c) H. Redies.
R10, h1585. SH-SH-..-ga-ga-.. call given by bird during or after arrival in the vegetation surrounding the feeding place.
10-Sep-2010, 05h17. RPPN Mãe-da-lua, Itapajé, Ceará, Brazil. h1583. (c) H. Redies.
R30, h1583. ga-ga-.. and ga-o and similar calls issued by bird waiting in vegetation, after arrival in surroundings of feeding place.
10-Sep-2010, 05h16. RPPN Mãe-da-lua, Itapajé, Ceará, Brazil. h1584. (c) H. Redies.
R40, h1584. SH-SH-..-ga-ga-.. call issued by bird during or after arrival in the vegetation surrounding the feeding place.
05-Sep-2010, 05h40. RPPN Mãe-da-lua, Itapajé, Ceará, Brazil. h1104. (c) H. Redies.
R50, h1104. Whistles given by guans on feeding place. Also other sounds.
05-Sep-2010, 05h32. RPPN Mãe-da-lua, Itapajé, Ceará, Brazil. h1087. (c) H. Redies.
R60, h1087. Sound given when one guan pecks at another. Also soft whistles.
01-Sep-2010, 05h50. RPPN Mãe-da-lua, Itapajé, Ceará, Brazil. h1548. (c) H. Redies.
R70, h1548. Escape of over 30 guans from feeding place into trees.
05-Sep-2010, 05h32. RPPN Mãe-da-lua, Itapajé, Ceará, Brazil. h1576. (c) H. Redies.
R80, h1576. Jay calls and escape of guans from feeding place into trees.
14-Sep-2010, 05h24. RPPN Mãe-da-lua, Itapajé, Ceará, Brazil. h1555. (c) H. Redies.
R110, h1555. Raucous calls of single guan perched on tree top, during intermediate stop while moving to Gameleiras. This vocalization is different from the SH-SH-.. calls listed above.
23-Sep-2010, 05h22. RPPN Mãe-da-lua, Itapajé, Ceará, Brazil. h1560. (c) H. Redies.
R120, h1560. Several ga-ga-.. series of single guan perched on tree top, during intermediate stop close to Gameleiras. Also calls of Tolmomyias flaviventris.
R130 and R140. Recordings disabled. See ERRATA.
R150 and R160. Recordings disabled. See ERRATA.