The data include size, sex, location and morphological measurements and of Muraenolepis specimens included in Fitzcharles et al. (2021). The morphometric data were primarily collected from fish captured during South Georgia Groundfish Surveys in 2003, 2004 and 2005, with additional data obtained from type specimens and extracted from published descriptions of Muraenolepididae. For genetic studies, tissue samples from the South Georgia specimens were supplemented by additional tissue samples from Muraenolepis in other parts of the Southern Ocean. Source, location and depth of capture are included for all specimens that were sequenced, together with sequence Accession Numbers (to the DNA Database of Japan) for Cox 1 and 16S rRNA sequences. The work was primarily funded by the Government of South Georgia & the South Sandwich Islands and was a component part of Elaine Fitzcharles' PhD (University of St Andrews).

This dataset contains ringing data of snowy sheathbills (Chionis albus) captured, ringed and released on Bird Island, South Georgia from September 2024 to September 2025, as well as subsequent resightings of birds throughout the year. Ringing data includes summary morphometrics including size and weight measurements. Resightings were made on an ad-hoc basis but represent high effort throughout the year. Data were collected as part of an initial study of sheathbills at Bird Island, aiming to discern population structure, comparative morphometrics with Antarctic birds, and for sexing via discriminant functions. Data were collected by Bird Island Zoological Field Assistants. Funded as part of the BAS Bird Island Long-term Monitoring Programme.

The data consists of 3D surface scans of the beaks of 662 museum specimens of sixteen species (representing fifteen families of passerine birds: Fringillidae, Ploceidae, Passeridae, Viduidae, Thraupidae, Estrildidae, Artamidae, Cardinalidae, Sittidae, Prunellidae, Motacillidae, Emberizidae, Alaudidae, Cinclidae, Bombycillidae). Each species has scans from between 23 and 31 specimens with the exception of chaffinches (Fringilla coelebs), with scans from 230 specimens representing fourteen subspecies. Full details about this nonGeographicDataset can be found at https://doi.org/10.5285/e53b2c4f-fc2e-47a9-b5b7-cc3a59f790ac