Day length
and time of year go together for birds living
outside or in the wild. Genetically they are programmed that when the
days get longer (summer is approaching), it is time to get ready to
breed and produce young. Summer time is an ideal time for producing
young because when the temperature is warmer, the food supply is at the
maximum. Birds living inside however, are in a regulated
environment-constant temperature and day length can trick a pet bird
into thinking that it is laying season all year around. All pet parrots
require 12 hours of light and 12 hours of dark optimally. Their 12 hours
sleep should be uninterrupted-that is they need to be away from the
other members of the family in a warm, dark, quiet room. Many chronic
egg layers live in busy, active homes where they actually get 10 or less
hours of uninterrupted sleep. Increasing sleep time will help discourage
chronic egg production.
As stated, most pet birds live in regulated environments. This
is not a bad thing, but consistently warm temperatures can stimulate egg
laying. Temperatures over 75 degrees are important for unwell parrots,
but healthy hens should not be kept consistently at or above this all
year around. You can vary the temperature throughout the year-warmer in
the summer, a bit cooler in the winter (but not below 70).
The more healthy and content a hen is the most likely it is to
lay eggs. This seems to hold true for most small species-cockatiels,
lovebirds etc. Having an egg-laying hen is really a complement to you!
Egg laying, however is physically stressful on the bird. Egg laying
depletes the body of calcium, proteins and valuable minerals. Because of
this, the diet fed to your bird is very important. A healthy diet
(varying with the species) for an egg laying
bird consists of a pelleted diet, calcium rich veggies,
with only a small amount of seeds. Consult your avian veterinarian for
the diet best suited for your bird. Birds NOT fed an appropriate diet
may have an increased chance of egg binding, seizures, fractures in the
legs /back and general poor overall condition.
Birds that are strongly bonded with their owner, or a mate
bird, are more likely to lay eggs. We see this commonly in singly kept
female cockatiels. This does not mean that you should run out and buy
other birds. Instead, change the bird’s environment. Move her cage
around the house. Rotate toys more frequently. Install a grate at the
bottom of the cage. Don’t punish broody behavior but don’t encourage
it either. Ignore it. Distract her with a new toy. Limit stroking to the
head, being careful to avoid the back, rump, under the wings and
stomach. Avoid feeding her on your shoulder with wet, moist foods. (This is
okay, if you are hand feeding a baby bird, but remember that males
regurgitate food to their mates-this is a breeding behavior.)
For birds that chronically lay, there are several treatments
available:
a). Hormonal therapy- HCG, Testosterone, Lupron
b). Surgery
Hormonal therapy is considered first. Weekly to monthly injections
can stop the ovary from producing eggs. There are risks associated with
surgery in birds: blood loss and complications from the anesthetic (or
complications from the surgical procedure) are all concerns. See your
avian veterinarian for more information on whether any of these are
appropriate for your bird.
Susanne Hardy
RAHT , Bsc. (AnSc.)