Lubcker, Nico; Bloem, Liezl M.; Du Toit, Therina; Swart, Pieter; De Bruyn, P.J. Nico; Swart, Amanda C.; Millar, Robert P.
(Elsevier, 2020-02)
Obtaining longitudinal endocrinological data from free-ranging animals remains challenging. Steroid hormones can be extracted sequentially from non-invasively sampled biologically inert keratinous tissues, such as feathers, ...