Egyptian clover leaves were most consumed for Monacha obstracta (27g./ 10 individuals/ 5 days) followed by peganums, hibiscus and date palm11,11 and 10g./ 10 individuals/ 5 days respectively, while did not approach the sansevieria leaves. Peganums leaves were most consumed for both Eopania vermiculata and Thepa pisana 63 and 54 g./ 10 individuals/ 5 days respectively. Sansevieria and date palm leaves were less than the two previous ornamental plants. M. obstracta preferred Egyptian clover leaves followed by plant leaves, while T. pisana and E. vermiculata preferred the peganums and hisbicus. wheat bran and crushed bread were most attractive for all species wheat bran snails than other foods.

The wild bird species, cause serious damage to many field crops during both sowing and maturing stages. Wild birds began attacked the wheat crop after the second week of the panicles emergence. The dough stage recorded the highest percentage of damage with 9.19, 8.58 and 7.85 % at fields beside orchard, vegetables and crops respectively. While the lowest damage was recorded in the milky stage. Bird damage on Maize fields increased throughout the weeks after silking and during the development and grains growth till the sixth week, then decreased in the seventh weak with value, 8.45 and 6.52 % respectively, while the lowest value at the second week with 4.57 %. Also there was highly significant difference between weeks. Birds attacked tomato during maturity stage with values 5

The present work aimed to study the effect of protein ratio on the daily food consumption rate of house sparrow Passer domisticus niloticus, the results indicated to, the house sparrow Passer domisticus niloticus prefer the diet contain a high ratio from protein about food contain low ratio protein, the food consumption from high food protein increased during the experimental period. Statistical analysis showed that; consumption ratio was significantly different in the different concentrations, while wasn't significant different in four days in consumption ratio.

A field experiment was carried out in order to study the population fluctuations of harmful wild birds at four different habitats, i.e., Nearby animal's farm, field crops, honeybee apiary and trees. This study was carried out in planted areas at farm of Faculty of Agriculture, Al-Azhar University, Assiut, Egypt during December 2018 till November 2020. The study proved that there are four species of wild birds it is present throughout the year in the study area. The four species were house sparrow, Passer domusticus niloticus, hooded crow, Corvus corone sardonius, palm dove, Streptopilia senegalensis egyptica and rock dove, Columba livia schimpari. The study showed that the highest population of house sparrow was recorded in fields nearby trees, followed by fields nearby honeybee apiary and fields nearby field crops. Then the lowest population was in fields nearby animal's farm. Also, the population of hooded crow was highest in fields nearby animal's farm and trees, followed by fields nearby honeybee apiary. Then the lowest numbers were recorded in fields nearby field crops. As for the palm dove the highest population were in fields nearby trees, followed by fields nearby honeybee apiary, followed by fields nearby animal's farm. And the lowest population recorded in fields nearby field crops. Finally, the rock dove bird recorded the highest population in fields nearby animal's farm, followed by fields nearby honeybee apiary and fields nearby trees. As for the lowest population of rock dove were in fields nearby field crops.

Laboratory study in cages was conducted, using different plant seeds to estimate the food preference of house sparrow, Passer domesticus niloticus Nicoll and Bonhote. Under choice and non choice test. Sparrows showed a clear difference in food preference among various seeds, while under non choice tests, sparrows preferred wheat, soybean, sorghum, safflower, sunflower and fenugreek respectively but under choice tests, sparrows preferred soybean, wheat, safflower, sunflower, sorghum and fenugreek respectively.