identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
038287B4FFBBFFA5FF7EFAF6FE4C1032.text	038287B4FFBBFFA5FF7EFAF6FE4C1032.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Data Walker 1862	<div><p>Data collection</p><p>The nest boxes were checked every 2 days after nest material was first found in the boxes. We simultaneously searched for potential natural nest-cavities in the surrounding forest (Figure 1 (b)). Tree cavities were considered actively used if giant nuthatch frequently visited and added nest materials. We combined direct observation and filming with Miniature video cameras (HD99S-10, LooSafe, Dongguan, Guangzhou, China) to record nesting activity and parental behaviour. The cameras were set up to take video 24 hours a day and each was fixed to the inside of the nest box flap. The camera recorded the nestlings from egg laying until the nestlings fledged. Incubation and fledging dates were obtained from the video and field observations of the nests. The frequency and duration of each behaviour was estimated from the total number of observations made between 6.00am and 8.00pm (GMT+8), covering the main activity period of the giant nuthatch. The nest temperature was measured using a probe-type electronic thermometer (WS-C, CKR, Penghe Electronics, Shanghai, China), with the probe placed inside the nest box.</p><p>We determined habitat type by the habitat type map in the general planning of the nature reserve. For nest trees, we photographed and collected specimens of leaves and branches. Nest materials were collected after fledging and identified, where possible. We determined egg colour by comparing with standard colorimetric cards (PANTONE formula guide, coated and uncoated) (Mo et al. 2023).</p><p>Nest size, egg and nestling size were measured using vernier callipers accurate to 0.01 mm without damage. Nest height was measured using tape accurate to 0.01 m and nest tree diameter at breast height (DBH) was measured using diameter tape accurate to 0.01 cm . Egg, nestling and nest material mass were measured using an electronic scale accurate to 0.01 g. Egg mass was measured on the second day of the incubation period. Nestlings were taken from the nest-box nest using a small cardboard box, measured daily for mass and tarsus length and ringed at 15 days old. After the fledging of the nestlings, we weighed and classified the nesting materials in the nest box (artificial and other), identifying plant material to species where possible by consulting the Flora of China (eFloras 2008). We used an electronic scale for weighing and both direct and microscopic examination for classification.</p></div>	https://treatment.plazi.org/id/038287B4FFBBFFA5FF7EFAF6FE4C1032	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mo, Ruixin;Li, Yu;Kang, Zezhao;Duan, Yubao	Mo, Ruixin, Li, Yu, Kang, Zezhao, Duan, Yubao (2025): Breeding biology of globally endangered giant nuthatch (Sitta magna) in south-west China. Journal of Natural History 59 (21 - 24): 1435-1447, DOI: 10.1080/00222933.2025.2491164, URL: https://doi.org/10.1080/00222933.2025.2491164
038287B4FFBAFFA5FF7EFC91FDEF1696.text	038287B4FFBAFFA5FF7EFC91FDEF1696.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Data Walker 1862	<div><p>Data analysis</p><p>Body mass and tarsus length were selected to fit the growth and development curves of the nestlings. Hatching success, fledging success and breeding success provided measures of reproductive outcomes. Hatching success was defined as the proportion of eggs that hatched; fledging success was defined as the proportion of successfully hatched nestlings that fledged; and the breeding success rate was defined as the proportion of nests that produced at least one fledgling (Liang et al. 2020).</p><p>Spearman’s correlation was used to examine the correlation between nest temperature and egg-turning frequency. Egg-turning frequency is defined as the number of times egg-turning behaviour occurs within 1 h. Egg-turning behaviour refers to the act of a bird using its beak or feet to peck and move the eggs within the nest at intervals during incubation (Zheng 2012). One-way analysis of variance (ANOVA) was used to detect differences. Logistic regression was used to fit nestling growth curves. Data are presented as mean ± standard deviation (SD). Data analysis and graph production were performed using R Studio 4.1.1. In order not to destroy the natural nest, detailed information on egg size, egg mass, nestlings’ physical data, incubation behaviour and nestling brooding were obtained only from the nest-box nest.</p></div>	https://treatment.plazi.org/id/038287B4FFBAFFA5FF7EFC91FDEF1696	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mo, Ruixin;Li, Yu;Kang, Zezhao;Duan, Yubao	Mo, Ruixin, Li, Yu, Kang, Zezhao, Duan, Yubao (2025): Breeding biology of globally endangered giant nuthatch (Sitta magna) in south-west China. Journal of Natural History 59 (21 - 24): 1435-1447, DOI: 10.1080/00222933.2025.2491164, URL: https://doi.org/10.1080/00222933.2025.2491164
