Harem, Ismail S.Kocak-Harem, MelekTuran-Kozlu, TolunayAkaydin-Bozkurt, YesimKaradag-Sari, EbruAltunay, Hikmet2024-09-182024-09-1820101042-72601937-2825https://doi.org/10.1638/2008-0205.1https://hdl.handle.net/20.500.12483/10517This study was performed to determine the histologic structure of the uropygial gland in an osprey. The gland was composed of two elongated lobes which were enclosed in a capsule of connective tissue. Each lobe of the gland had a large central cavity with one excretory duct. The secretory tubules consisted of four cell types: basal, intermediate. secretory, and degenerative. The intermediate cells in the osprey were few in number and did not form a layer, while secretory and degenerative cells consist of 2-3 strata, indicating a high level of lipogenesis. The membranes and peripheral cytoplasm of degenerative cells located in the base of the lobes revealed calcium (Ca2+) deposition and an intense acidophilic reaction.eninfo:eu-repo/semantics/closedAccessHistologystructurecalciumospreyPandion haliaetuspreen glandArticle41114815110.1638/2008-0205.1207222702-s2.0-77950419903Q2WOS:000276464200024Q3