For the first time, an attempt has been made to present, chronologically and in a systematized form, the development of ornithological studies at the National Museum of Natural History in Sofia ...(Bulgaria) from its foundation in the last decades of the 19th century to the present day. This 135-year period (1889–2024) includes the work of 12 curators of the ornithological collections. Their major contributions and most-significant ornithological publications are also presented.
The examined material (207 bones and bone fragments) of 53 avian taxa from two human cave dwellings is dated between 24,000 ± 1000 BP and 9400 ± 100 BP. It reveals that 49.0% of the bird species/taxa ...disappeared from the recent bird fauna of the Thanh Hoa Province; 39.6% disappeared from the recent bird fauna of North Vietnam (except Thanh Hoa Province); 33.9% disappeared from the recent bird fauna of Vietnam (except North Vietnam); 28.3% are not extant in the recent bird fauna of Indochina (except Vietnam); and 52.8% disappeared from the recent bird fauna of Southeast Asia (except Indochina). This suggests more considerable influence of the Late Pleistocene climatic events on the environment and bird fauna than previously accepted in the Eastern part of the Indochinese peninsula in the last 24–millenia. The gallinaceous birds are best represented. Of the 39 Southeast-Asian species, 18 species/taxa (46.2 percent) are Galliforms. They consist of 34 percent of all bird taxa recorded in both caves. Four categories of the IUCN Red List have been represented among the established birds in the sites: LC—28, NT—7, VU—2 (Buceros bicornis and Rhyticeors undulates), and CR—2 (Lophura edwardsi and Rhinoplax vigil).
A total of 13 Quaternary localities of three recent species of shrikes with a total of 24 bone and bone fragments are reported. They encompass Early Pleistocene (Biharian) to Late Holocene ...(subrecent) and reveal the wide former distribution of Lanius collurio throughout the country. Eleven localities are situated in the Northern Bulgaria and two - in southern regions of the country. Most of the localities are located in plain and hilly landscapes and only two localities are mountainous. For each species are provided data on the chronostratigraphic distribution, altitudinal distribution and the anatomical belonging of finds. Localities of L. collurio are located between 50 and 130 m a.s.l.
A new species of small phasianid is described, based on 54 bone findings of 21 skeletal elements of forelimb and pectoral girdle (9) and hindlimb and pelvic girdle (12) representing at least four ...individuals. The holotype is the scapula. The new species differs from the type species (Chauvireria balcanica Boev, 1998) of the genus by: (1) the longer acromion scapulae, which is more upright and dorsally instead of cranially directed, (2) the thinner humeral part of the coracoid, and (3) the wider condylus dorsalis of the humerus. The species probably inhabited rocky, open shrubby and dry habitats in the middle Villafranchian (Villanyian; first half of MNQ 18 a; 2.1-1.95 Mya) in western Bulgaria.
An observation of an adult bird on the 20th August 2022 along the shore of Bozalan (Bakardere) Reservoir near Verinsko village (CW Bulgaria) is reported. This is the first species’ record in the last ...132 years in that part of the country.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
A late Miocene (Middle Turolian) ulna is described as a holotype of Phasianus bulgaricus sp. n.. This find is the first record of Neogene true pheasants in Europe.
This paper presents and analyses for the first time all data on bird images of two Late Antique basilicas of the Roman period (5th-6th c. AD) in the town of Sandanski (SW Bulgaria). A total of eight ...species have been recognised on the floor mosaics of both basilicas: Anas platyrhynchos, Bucephala clangula, Dendrocygna viduata, Nettapus coromandelianus, Marmaronetta angustirostris, Porphyrio porphyrio, Psittacula krameri, and Sypheotides indicus. Exotic birds of Palaeotropic (Ethiopian) and Indomalayan (Oriental) distribution confirm once again the active ancient Roman contacts with East and Trans-Saharan Africa and the Hindustan Peninsula.
A complete right tarsometatarsus from an unknown site of New Zealand was identified as little bush moa (Anomalopteryx didiformis (Owen, 1844)), possibly an adult male individual.
Predator–prey interactions may be linked to different temporal or spatial patterns, including dynamics in prey populations. Therefore, understanding the adaptive capacity and how top predators ...respond to shifts in prey abundance and availability is crucial for their conservation. In this study, we investigated the diet pattern of the endangered Eastern Imperial Eagle facing long-term and large-scale changes. We studied the abundance variation of its profitable prey, sousliks, and how it reflected on eagle population trajectories in a regional and temporal context. We found a significant diet alteration expressed in large decrease of brown hare (β2 = −0.83), poultry (β2 = −0.81), gulls (β2 = −0.71), and water birds (β2 = −0.57), and an obvious increase of northern white-breasted hedgehog (β2 = 0.61) and doves (β2 = 0.60). Raptors and owls raised their participation (β2 = 0.44), but white stork and different reptiles supplied more biomass. Abundance of European souslik decreased through the studied periods (adjusted R2 = 0.25, p < 0.001) which accounted for the lower proportion of this prey in the eagle’s diet. Nevertheless, the eagle population successfully adapted and significantly increased (β2 = 0.97) in most of the distribution area. The trophic strategy used by this top predator related to opportunistic foraging represents an ecological advantage that allows the species to adapt to different habitats and guarantees its future. The observed prolonged diet alteration could result in a significant negative attitude among different groups such as hunters, pigeon fanciers, and poultry keepers towards eagles. Therefore, enhanced communication with key stakeholders is needed. Conservation efforts should be focused also on the preservation of the species’ main foraging habitats and the restoration of damaged ones so as to maintain the good conditions of both primary food source and subsequent prey.
The oldest remains of the White-tailed eagle in Bulgaria came from the Neolithic-Chalcolithic (6000–4000 BC). Five Holocene localities of the species have been established in the country, in which a ...total of 24 bone finds of at least 10 individuals have been found. It is thought that, as in other countries in Europe, from at least the Iron Age to the late Middle Ages, large primaries and rectrices of these eagles were used to produce stabilizers for the hunting arrows of ancient hunters. All localities are located in North Bulgaria along the Danube and Black Sea coasts, but always adjacent to another water body (lake, marsh or river).
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