Now, the U.S. Fish and Wildlife Service (FWS) in Washington, D.C., is poised to declare victory for the majestic avian by removing the bald eagle from its list of threatened species by a court-ordered deadline of 29 June. Bald-eagle experts agree with the move, although some argue that a small population in the Southwest isn't ready for delisting. Many remain worried, however, about how well ne...

Geographic patterns in species richness are mainly based on wide-ranging species because their larger number of distribution records has a disproportionate contribution to the species richness counts. Here we demonstrate how this effect strongly influences our understanding of what determines species richness. Using both conventional and spatial regression models, we show that for sub-Saharan A...

A scale with a reliability of 0.82 was developed for rating an avian behavior pattern tentatively identified as aggressiveness. The scale was applied to wild birds held in the hand and threatened in a standardized fashion. Individual differences in aggressiveness were demonstrated for Brown-headed Cowbirds and Common Grackles. Correlation between two ratings of the same bird was 0.53 for Grackl...

The first global assessment of amphibians provides new context for the well-publicized phenomenon of amphibian declines. Amphibians are more threatened and are declining more rapidly than either birds or mammals. Although many declines are due to habitat loss and overutilization, other, unidentified processes threaten 48% of rapidly declining species and are driving species most quickly to exti...

In recent years, with the deterioration of earth’s ecological environment, survival birds has been more threatened. To protect and diversity species on earth, it is urgent to build an automatic bird image recognition system. Therefore, this paper assesses performance traditional machine learning deep models recognition. Also, help-ability transfer in field tested evaluate best model for systems...

Energy infrastructure, particularly for wind power, is rapidly expanding in Africa, creating the potential conflict with at-risk wildlife populations. Raptor populations are especially susceptible to negative impacts of fatalities from energy because individuals tend be long-lived and reproduce slowly. A major determinant risk collision between flying birds turbines altitude above ground at whi...

A survey was conducted covering the area lying between a large river bed and edges of township in Jalpaiguri district North Bengal. total 73 species birds were recorded under53 generaand 17 orders. The highest number belonged to order Passeriformes. Five reported under Near-Threatened category. Of orders recorded, relative diversity index observed be for Passeriformes, followed by Anseriformes ...

Using published IUCN red-lists for the threatened bird species of Indonesia (Stattersfield & Capper, 2000), we document that the species at risk in Indonesia are not a taxonomically random sample, consistent with patterns seen at the global scale (Purvis et al., 2000). This implies that a greater than random proportion of Indonesia's and the world's (through the loss of endemics) phylogenetic d...