An open-content, electronic journal published by the Animal Demography Unit
at the University of Cape Town

Biodiversity Observations (including Ornithological Observations) - ISSN 2219-0341
List of the 20 most downloaded articles.

Shadow boxing by birds - a literature study and new data from southern Africa
Joel Roerig
Ornithological Observations 2013 4:39-68, published 2013-06-04
Download: PDF (full text)        |        Downloads: 6006       |        Views: 3105
Birds of the Cape of Good Hope Nature Reserve, South-Western Cape, South Africa
Mike Fraser
Ornithological Observations 2014 5:139-247, published 2014-06-09
Download: PDF (full text)        |        Downloads: 3738       |        Views: 5655
Feral pigs: a threat to ground-nesting birds
JE Fincham and JA Hobbs
Ornithological Observations 2013 4:83-89, published 2013-06-12
Download: PDF (full text)        |        Downloads: 3141       |        Views: 1564
Cuckoo about cuckoos: identification of Common and African cuckoos re-examined
Faansie Peacock
Ornithological Observations 2014 5:411-430, published 2014-10-27
Download: PDF (full text)        |        Downloads: 3014       |        Views: 1953
Endemic fynbos avifauna: comparative range declines as cause for concern.
Alan TK Lee & Phoebe Barnard
Ornithological Observations 2012 3:19-28, published 2012-06-06
Download: PDF (full text)        |        Downloads: 2972       |        Views: 2759
How to make 2.5 billion termites disappear? A case for protecting the Amur Falcon
Henk Bouwman, Craig Symes & Hannalene du Plessis
Ornithological Observations 2012 3:232-242, published 2012-11-29
Download: PDF (full text)        |        Downloads: 2813       |        Views: 3120
First recorded breeding record of feral Common Peacock Pavo cristatus in Africa
TM Leshoro, LG Underhill and BM Dyer
Ornithological Observations 2010 1:1-2, published 2010-08-31
Download: PDF (full text)        |        Downloads: 2777       |        Views: 5110
Notes on the breeding and breeding success of Crowned Lapwings Vanellus coronatus in the southern suburbs of Bloemfontein
DH de Swardt
Ornithological Observations 2010 1:48-51, published 2010-11-06
Download: PDF (full text)        |        Downloads: 2761       |        Views: 2118
A comparative analysis of SABAP2 data for the Free State National Botanical Gardens and the Valley of Seven Dams Conservancy, Bloemfontein
Dawid H de Swardt
Ornithological Observations 2014 5:1-8, published 2014-01-05
Download: PDF (full text)        |        Downloads: 2345       |        Views: 1117
Birds of the Ozabeni section of the Isimangaliso Wetland Park.
N.F. Robson and R.F. Horner
Ornithological Observations 2012 3:58-99, published 2012-08-20
Download: PDF (full text)        |        Downloads: 2271       |        Views: 1894
Nectar-feeding by southern African birds, with special reference to the Mountain Aloe Aloe marlothii
Derek Engelbrecht, Joe Grosel, Daniel Engelbrecht
Ornithological Observations 2014 5:49-74, published 2014-03-17
Download: PDF (full text)        |        Downloads: 2190       |        Views: 1264
Growth and development of Crested Barbet Trachyphonus vaillantii nestlings
D Engelbrecht
Ornithological Observations 2010 1:59-62, published 2010-11-22
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Egyptian Goose Alopochen aegyptiaca hybridizes with Common Shelduck Tadorna tadorna
DH de Swardt
Ornithological Observations 2010 1:63-64, published 2010-12-27
Download: PDF (full text)        |        Downloads: 2066       |        Views: 2397
Caught in the act II: Boomslang predation on Sabota Lark nest.
Derek Engelbrecht and Lucy Mashao
Ornithological Observations 2012 3:211-212, published 2012-10-09
Download: PDF (full text)        |        Downloads: 2001       |        Views: 3639
How many tortoises do a pair of Pied Crows Corvus albus need to kill to feed their chicks?
John E Fincham and Nollie Lambrechts
Ornithological Observations 2014 5:135-138, published 2014-05-25
Download: PDF (full text)        |        Downloads: 1997       |        Views: 2416
Eyewitness report: Crested Barbet chicks killed by Lesser Honeyguides.
Ken Hattingh and Alfreda Hattingh
Ornithological Observations 2012 3:56-57, published 2012-08-16
Download: PDF (full text)        |        Downloads: 1950       |        Views: 1484
Annotated checklist of the birds of Banhine National Park, Southern Mozambique
DW Pietersen and EW Pietersen
Ornithological Observations 2010 1:7-37, published 2010-10-21
Download: PDF (full text)        |        Downloads: 1865       |        Views: 3000
Random time-activity budgets in captive Southern Ground Hornbill Bucorvus leadbeateri (Vigors, 1825)
Mark Cooper and Lara Cooper
Ornithological Observations 2013 4:154-157, published 2013-12-22
Download: PDF (full text)        |        Downloads: 1863       |        Views: 1282
Object play of an immature Martial Eagle Polemaetus bellicosus
Derek Engelbrecht
Ornithological Observations 2010 1:52-54, published 2010-11-11
Download: PDF (full text)        |        Downloads: 1801       |        Views: 3764
New migration records for the Damara Tern Sterna balaenarum
J Braby
Ornithological Observations 2010 1:38-41, published 2010-10-29
Download: PDF (full text)        |        Downloads: 1767       |        Views: 3581