Black-throated Tit Aegithalos concinnus Scientific name definitions
Version: 2.0 — Published December 22, 2020
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Observed birds standing side by side, with one bird quickly flying over the top of the other, and after landing, hopping rapidly along the branch. Birds may repeat the whole display several times. This display has been observed between opposite sexes and between males. It is assumed to be a dominance display, as it has been observed just prior to the breeding season, however its purpose is uncertain (R. P. Geldard, personal observation).
Has been documented in courtship feeding
Extra-Pair Mating Behavior/Paternity
Some low level of extra-pair paternity has been recorded in this species (5.7% of offspring and 17.2% of nests), and in central China (southern Henan) populations, this probably reflects the influence of helpers (14).
Social and Interspecific Behavior
Degree of Sociality
Very gregarious and usually in flocks, sometimes containing as many as 50 individuals during winter (13). Flocks are formed soon after breeding with membership fluid over winter until the following breeding season in spring (R. P. Geldard and J. Li, unpublished data). Smaller flocks are found throughout breeding season (comprising of failed breeders or non-breeders and later family groups from early broods). Often joins mixed-species foraging parties commonly including Great Tit (Parus major), Pallas's Leaf Warbler (Phylloscopus proregulus), and Silver-throated Tit (Aegithalos glaucogularis) in central China (13).