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Blossom-headed Parakeet Psittacula roseate is listed as Near Threatened on the IUCN Red List of Threatened Species because of its habitat loss, and declining population. In this study, we first sequenced and described the complete mitochondrial genome and phylogeny of P. roseata. The whole genome of P. roseata was 16,814 bp in length, and contained 14 protein-coding genes, 22 transfer RNA genes, 2 ribosome RNA genes, and 1 non-coding control regions. The overall base composition of the mitochondrial DNA was 31.88% for A, 22.00% for T, 32.88% for C, 13.23% for G, with a GC content of 46.11%. A phylogenetic tree strongly supported that genus Psittacula closely related with genus Eclectus by highly probability.

Avian pathogens such as bornaviruses, circoviruses and polyomaviruses are widely distributed in captive collections of psittacine birds worldwide and can cause fatal diseases. In contrast, only lit...

In this paper, we first reported the complete mitogenomes of Psittacula derbiana and Psittacula eupatria. Respectively, P. derbiana and P. eupatria mitogenomes are 16,887 and 17,139 bp base pairs l...

Capsule Of the three subpopulations, only the one west of London was increasing, with little spread. Aims To investigate the distribution and population dynamics of feral Ring-necked Parakeets in Great Britain. Methods County bird report records (from 1983–95) were collated and analysed to determine distribution and population trends. Roost counts were undertaken monthly from September 1996 to September 1998 to determine minimum population counts and trends. Results The parakeets were distributed in three subpopulations: west of London, southeast London and in Thanet, Kent. The total population increased during the period, with little spread, except for a slight westward range expansion. Flock size did not increase, and population growth was only apparent from maximum counts at communal roosts. The roosts were largest in the early autumn when, in each of the three years, minimum total population counts were obtained. The west of London population was large and growing, while the southeast London and Thane...

Covering maize cobs by wrapping maize leaves around them reduced damage by rose‐ringed parakeets (Psittacula krameri) by 97% in the field and 82% in aviary experiments. Being hidden and camouflaged, the wrapped cobs may have escaped detection by birds and thus were not damaged. The wrapping treatment also provided some protection to uncovered cobs within the treated plot, possibly by reducing the density of visible cobs in this plot compared with the control. There was no adverse effect of the wrapping treatment on grain yield.