Talking about ethics
Human beings possess a fair mass of brain cells which distinguishes them from other animals and it is probably for this reason that they are greedy for beauty. They love and crave beauty and are capable of incredible things to enable themselves to be surrounded by "beautiful things".
This is especially true nowadays and in well off countries , where certain material necessities have been obtained and more people can dedicate themselves to searching for that which gratifies them esthetically. However also in less rich places, where material necessities are still a problem , people are sensitive to beautiful things and objects. It is enough to think that in the tribal cultures of the deepest forest of Papua New Guinea where the very beautiful feathers of the paradise bird are used by people to dress up, or in the most out of the way Pacific island where people tattoo their bodies in the name of beauty. This should make us understand that the necessity of beauty is permitted. Humans don't live on bread alone!
Beauty is subjective and it is permitted that everyone is sensitive to their "own beauty". However a limit is understandable: a healthy sense of beauty mustn't allow the destruction of its source. This limit should value more for who finds beauty in nature: from the insect collector, to the shell collector, to who loves to have a terrarium or an aquarium to who breeds parrots up to the greatest scientist of the world. These activities induce who practices them to have a greater respect for nature. The serious collector, the serious breeder and also the scientist are horrified at the thought that they could destroy the source of their own pleasure, also because for the most part of these cases, these people are not simply sensitive to the animals' colours but they understand the grandiosity of the mechanism of life, which constitutes the greatest beauty.
The others are the bad ones! If we think that to walk on a beautiful parquet flooring means walking on the death of a forest from Palaeozoic times, the fruit of millions of years of natural selection !If we think that in the past shoes that were made from veals, which were so soft, but that the veals cried going to the butcher. If we think that wearing clothes made from cotton has contributed to drying out almost all the Aral sea to irrigate the plantations.
The physical space human beings occupy is not visible anymore from the cities but rather that which we take up with the mines for minerals , the fields for food and all the rest... If we think that our beautiful silk neck scarf cost tens of lives of silk worms. If we think about it, without judging too much others who instead try not to lose contact with nature perhaps by keeping a bird in a cage.