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The geographic distribution of Great Horned Owl, Bubo virginianus (Gmelin, 1788), in Rio de Janeiro state, southeastern Brazil, is revised and expanded. Two individuals were recorded in an Atlantic Forest fragment surrounded by rural and industrial areas in Macaé municipality, on the northern coast of Rio de Janeiro state. This is the twentieth time that B. virginianus is documented in this state in the last two centuries and highlights the importance of bird surveys in regions with ornithological knowledge gaps.

Rare bird has long been considered an important in the field of airport security, biological conservation, environmental monitoring, and so on. With the development and popularization of IOT-based video surveillance, all day and weather unattended bird monitoring becomes possible. However, the current mainstream bird recognition methods are mostly based on deep learning. These will be appropriate for big data applications, but the training sample size for rare bird is usually very short. Therefore, this paper presents a new sparse recognition model via improved part detection and our previous dictionary learning. There are two achievements in our work: (1) after the part localization with selective search, the gist feature of all bird image parts will be fused as data description; (2) the fused gist feature needs to be learned through our proposed intraclass dictionary learning with regularized K-singular value decomposition. According to above two innovations, the rare bird sparse recognition will be implemented by solving one 11-norm optimization. In the experiment with Caltech-UCSD Birds-200- 2011 dataset, results show the proposed method can have better recognition performance than other SR methods for rare bird task with small sample size. [ABSTRACT FROM AUTHOR]

The article provides material on shikra's ecology collected in the Lower Amudarya area in 2004, 2005, 2015 and 2016. It also describes the results of research into shikra's distribution, number, breeding biology and diet. The work gives recommendations for the conservation of this bird. [ABSTRACT FROM AUTHOR]