The Research on the development of Mobile Apps under the name "La Bird" and its effectiveness on student bird literacy abilities has been carried out. The purpose of this study is to produce a product in the form of Mobile Apps and test the effectiveness of the literacy skills of students. The development model used is the Lee & Ow-en development model following the stages of assessment / analysis, design, develop, implement, and evaluate. The effectiveness of "La Bird" Mobile Apps is carried out with a pre-experimental research design in the form of one group pretest-post test design. The diversity of bird species that are used as content in Mobile Apps is obtained from the exploration results of the composition of bird species in 6 Water Resources of Malang Raya. The data obtained were analyzed based on the average NGain score of bird literacy. The average NGain score of bird literacy score was 0.50, which means that the level of effectiveness of using Mobile Apps on the ability of bird literacy is included in the medium category. Thus the Mobile Apps "La Bird" effectively trains the ability of bird literacy students who take the Ornithology course at the State University of Malang.