Aspects of the moult, morphology and anatomy of rock pigeons

Abstract

UITTREKSEL Ondersoek is ingestel na aspekte van die morfologie en anatomie van kransduiwe (Columba guinea) in ABSTRACT Aspects o f the moult, morphology and anatomy o f rock pigeons A spects o f the morphology and anatom y o f rock pigeons (Columba guinea) were investigated. M oulting apparently takes place throughout the year at a relatively low intensity. M arked peaks in moulting could only be distinguished fo r the primaries, secondaries and tail fea th ers o f males. The renewal process fo r fem ales takes MATERIAAL EN M ETO D ESTydens latere ondersoek in die laboratorium is die volgende standaardliggaam safm etings van die ontdooide duiwe geneem: Liggaamslengte -snawelpunt tot punt van langste stertveer; snawellengtc -snawelbasis tot snawelpunt; snaw elbreedte-breedte direk voor snawelbasis; snaweldikte -bokant van boonste