![]() ![]() Ann Rec 190:605–606īredenkötter M, Bischof H-J (1990) Ipsilaterally evoked responses of the zebra finch visual wulst are reproduced during ontogeny. Exp Brain Res 28:73–84īrecha N, Karten HJ (1978) Projection of the accessory optic nuclei and vestibular nuclei upon the oculomotor nuclear complex in pigeon. J Comp Physiol A 163:329–337īrauth SE, Karten HJ (1977) Direct accessory optic projections to the vestibulo-cerebellum: a possible channel for oculomotor control systems. The unwillingness of white birds to respond with optokinetic response in bright daylight may be due to a substantial lack of inhibition within the visual system as demonstrated earlier, which may enhance the sensibility to glare.īischof H-J (1988) The visual field and visually guided behavior in the zebra finch ( Taeniopygia guttata). We conclude that the altered wiring of the visual system of white birds has no influence on accessory optic system function. In bright daylight, white birds did not show optokinetic responses. Its increase with illumination level followed Fechner’s law and reached a plateau at about 560 Lux. The upper velocity threshold was higher with temporal to nasal movements in monocularly exposed birds and symmetrical with binocular exposure. The highest stimulus velocity eliciting an optokinetic response (upper velocity threshold) was dependent on stimulus direction and illumination level, but was not different between the colour morphs. We investigated here the effect of rotational optic flow on the optokinetic response in wild type and white zebra finches. in a rotating drum lined with vertical stripes. The optokinetic response is elicited by rotational optic flow, e.g. It is processed by the accessory optic system in all vertebrates. We are the only store in Florida to offer this guarantee as of the year 2000.Optic flow is a main source of information about self movement and the three-dimensional composition of the environment during locomotion. ![]() We do take a 40% commission and charge a nominal daily fee to feed and clean, but you can rest assured that you always have a place for your bird should the need arise. We guarantee that if during your lifetime, you are no longer able to properly care for your bird, or give your bird the attention it need's, we will accept the bird back on consignment and will find another great home for your bird. We are always here to help you take the best care of your bird with the biggest variety and best quality bird products available in the world. Your new bird has been given an excellent start here at Golden Cockatoo, and it is now your responsibility to properly care for your bird. We guarantee that when the bird leaves the store that it has been properly socialized, and that it is 100% healthy. Since we have 100% control over the bird's environment at our store, but have no control over the bird once it leaves, we can only guarantee the bird for the first five days. If the results are unacceptable then we either replace your bird or refund 100% of the purchase price of your bird, at our option.īird Guarantee only lasts for the first five days If the results are not perfect but the bird can be easily treated, then we pay for all medications and all treatment. We can guide you as to the tests we suggest. The guarantee is simple: We guarantee that we are selling you a perfectly healthy bird. To verify that guarantee, within five days you need to go to an Avian Vet and get any and all testing you prefer to do on your bird, at your expense. We have the strongest bird guarantee in the country, and more importantly, we stand behind our guarantee. ![]()
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