Sex Venting

[IrisJade]

Been practicing the Venting method not too much just to find out if i have a female or male, i do not like to put my ducks in discomfort, as a new mummy. Is this possibly a female?... i have 3 That one confirmed female as her quack sounds female, i did sex vent them before and saw nothing, they are a little older now and still nothing, the other 2 im unsure about are very quiet but obviously loud sometimes when i leave them for abit its like one loud squeal but raspy also

 

[JacinLarkwell]

Vent sexing really only works on birds less than a day old