This newly described species is listed as Critically Endangered because there are no known populations and the last record is from 1971; consequently if it does remain extant it is assumed that any population must be tiny. The species was collected on the Llano de Ovejas, a small plateau at 2,400-2,800 m. This species has […]
Chestnut Bunting (Emberiza rutila) Science Article 1 abstract In the present study, we reveal the control pattern of different level vocal nuclei (HVC and DM) in songbirds by electrical stimulation and acoustic analysis methods. The results show that both HVC and DM show left-side dominance in vocal control pattern, providing the acoustic evidence for the […]
Yellowhammer (Emberiza citrinella) Science Article 6 abstract Theoretical models predict that when having fat reserves is costly in terms of predation risk, birds should decrease their levels of fat reserves in response to increased predation risk. I performed an experiment in which yellowhammers were exposed to a control treatment, where a curtain was moved several […]
Yellowhammer (Emberiza citrinella) Science Article 3 abstract Some agri-environment schemes promote the creation and management of a variety of non-crop habitats on farmland inthe UK, yet there has been relatively little monitoring to assess how species, particularly birds, use these habitats. The presentstudy deals with a declining UK farmland bird species, yellowhammer Emberiza citrinella, and […]
Yellowhammer (Emberiza citrinella) Science Article 2 abstract Fine-scale habitat use by yellowhammers (Emberiza citrinella) searching for food to provision nestlings was compared in threeagriculturally contrasting regions of lowland England. Log-linear modelling was used to test for signi?cant overall variation inhabitat use and signi?cant di?erences in relative use between pairs of habitats. Yellowhammers provisioned nestlings non-randomlywith […]
Yellowhammer (Emberiza citrinella) Science Article 4 abstract Intensification of agriculture is believed to have caused declines in farmland bird populations. One of the key elements ofrecent agricultural intensification is the increased use of pesticides. However, studies elucidating relationships betweenindividual management practices and responses in bird populations remain rare. Here, evidence is presented of indirect effects […]
Yellowhammer (Emberiza citrinella) Science Article 1 abstract On 25 May 2003, near the village Budy (Biebrza Marshes, East Poland), interspecific feedingof a Great Grey Shrike (Lanius excubitor) fledgling by adult Yellowhammers (Emberiza citrinella) wasobserved. R. Drozdz, M. Hromada and P. Tryjanowski, BIOLOGICAL LETT. 2004, 41(2): 185n187 Download article download full text (pdf)
Yellowhammer (Emberiza citrinella) Science Article 5 abstract Yellowhammer Emberiza citrinella populations have declined rapidly in the UK over recent decades, and a clear understanding of their habitat requirements is important to help inform conservation schemes. We aimed to disentangle and rank the effects of winter versus breeding season habitat characteristics. 2. We used information theoretic […]
White-crowned Sparrow (Zonotrichia leucophrys) Science Article 1 abstract Dispersal data were collected on Mountain White-crowned Sparrow Zonotrichia leucophrys oriantha, an open-nesting migratory songbird breeding in high elevation meadows of the Sierra Nevada of California. Young birds began to move soon after fledging. Although some remained on their meadow of birth until migration, most moved away. […]
Striolated Bunting (Emberiza striolata) Science Article 1 abstract Striolated Bunting Emberiza striolata is recorded in northwest India up to southern Uttar Pradesh (Etawah), central Madhya Pradesh (Sagar) and central Maharashtra (Daulatabad) (Ali & Ripley 1974). Pande et al. (2003) reported its occurrence in Maharashtra up to Sanglidistrict. Satish Pande, Amit Pawashe and Vishwas Joshi, Indian […]