J. Ferguson-Lees’s scientific contributions

... The substrate where birds lay their eggs also may be an important factor contributing to variation in egg pointedness (Montgomerie et al. 2021), as well as nest features. Studies in common murres Uria aalge suggest that the pointed shape of their eggs, which are laid on rocky surfaces of densely populated cliffs, evolved to prevent the eggs from rolling off (MacGillivray 1852, Gill 2007). This has been challenged by studies showing that the pointed shape of eggs in this species has evolved instead as an adaptation to maintain structural integrity by reducing pressure from the incubating parent against rocky surfaces, and for protection from debris excreted by parents and neighboring birds (Birkhead et al. 2017). ...

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Egg shape variation across the distribution of the partially migratory fork‐tailed flycatcher Tyrannus savana

... The cinereous vulture, Aegypius monachus, is one of the largest birds of prey in Eurasia and its distribution is from Spain in the west to Mongolia and China in the east. 1 Their global population size is estimated to number 15,600-21,000 mature individuals and overall it is decreasing, despite the increase in the European population. 2 The two main threats to this species are direct mortality caused by poisoning by humans (either accidentally or deliberately) and decreasing food availability. 3 Shooting and poisoning are increasing in Mongolia, 4 and many birds are trapped or shot in China for their feathers used as accessories. ...

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Phylogenetic relationships and genetic variations among cinereous vultures Aegypius monachus in South Korea

... Our search revealed that both diclofenac and flunixin have been approved for use in at least one livestock or domestic animal species in all the 10 South American countries evaluated (Table S1 and Figure 1). Brazil had T A B L E 1 List of scavenging diurnal raptors in South America according to (Ferguson-Lees & Christie, 2001), along with their conservation status and their population trends according to the IUCN Red List. the highest number of different products containing diclofenac registered with 23, closely followed by 20 in Argentina. For flunixin, Colombia had the highest number of products registered with 58, again followed by Argentina with 40. ...

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Under the radar: The availability of nonsteroidal anti‐inflammatory drugs in South America and implications for avian scavenger populations

... Harrop (2010) fasste jüngst die Ergebnisse der Revision von zehn historischen Sperbereulen-Meldungen durch das British Ornithologists' Union Records Committee (BOURC) zusammen, mit dem Ergebnis, dass nur vier für akzeptabel gehalten wurden. An der Begründung für die Beurteilung einer bestimmten Meldung entzündete sich darauf eine intensive Debatte, bei der der Kommission von namhaften Ornithologen ein Mangel an Sorgfalt und korrekter Forschung vorgeworfen und schließlich der Umgang mit historischen Nachweisen -auch vor dem Hintergrund vereinzelten Betruges -grundsätzlich diskutiert wurde (Combridge et al. 2010, 2011, Harrop 2011, Harrop et al. 2012, McGhie 2012). ...

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Das Vorkommen der Sperbereule Surnia ulula in Deutschland [The occurrence of Northern Hawk-Owl Surnia ulula in Germany]

... Primrose 1906). Nesting Black Baza has been reported from Buxa Tiger Reserve, West Bengal (Sivakumar & Prakash 2005), and Tinsukia in Upper Assam of northeastern India (Imran 2010). Winter records of the species include stray occurrences in or near metropolitan areas such as the Guindy National Park in Chennai (Santharam 1981;Kannan 1985). ...

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On the occurrence of Black Baza Aviceda leuphotes Dumont, 1820 (Aves: Falconiformes: Accipitridae) in the Gupteswar forests of the Eastern Ghats, Odisha, India