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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. billhiltonjr

    how can we tell if the bird is pregnant?

    Wild birds do show a distended cloaca when laying, but they differ from chickens in that songbirds are "determinate" layers that produce a set number of eggs in a clutch. Some birds (such as chickens) will continue to lay if eggs are removed from a clutch; these are "indeterminate" layers.
  2. billhiltonjr

    how can we tell if the bird is pregnant?

    A better term might be "gravid." in most birds, it only takes a day or two fro a released egg to come down the oviduct, receive its yolk, and then have the shell laid down. In most birds the "incubation patch" (also called a "brood patch" devleops prior to egg-laying. The best way to telll if...
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