First find how many more hawks than crows there are: 60% * 30 crows = <<60*.01*30=18>>18 crows
Then add that number to the number of crows to find the total number of hawks: 18 crows + 30 crows = <<18+30=48>>48 crows
Then add the number of crows to the number of hawks to find the total number of birds: 48 crows + 30 crows = <<48+30=78>>78 crows
#### 78