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Fig. 4 | Avian Research

Fig. 4

From: Do migrant and resident species differ in the timing of increases in reproductive and thyroid hormone secretion and body mass? A case study in the comparison of pre-breeding physiological rhythms in the Eurasian Skylark and Asian Short-toed Lark

Fig. 4

Temporal trends in plasma estradiol (E2) levels in wild Asian Short-toed Larks and Eurasian Skylarks. All Asian Short-toed Larks and Eurasian Skylarks had been captured in the wild and sampled while held in captivity in 2014 (a) and 2015 (b)

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Avian Research

ISSN: 2053-7166