Wildlife recording survey

It is important that we get data collected in a consistent way in order to be able to use it effectively. Therefore, we would like to try to create a set of unified guidelines for the recording of your actions. Your answers will help us greatly in this process. 
We thank you in advance! 
1.On a scale from 1-5, how difficult it is for you to identify different species? 
(1= easy; 5=very difficult)(Required.)
Easy
Very difficult
2.On a scale from 1-5, how important do you think it is to identify different species?  (1=not important at all; 5= very important)(Required.)
Not important at all
Very important
3.How often do you register more than 5 birds in the APP?(Required.)
4.What does the term "Crossing-over" mean to you?(Required.)
5.How would you register a bird of prey that is sitting on a pole?(Required.)
6.How high do you register birds as "flying"? (Required.)
7.On a scale from 1-5, how difficult it is to guess the correct number of birds in a flock? 
(1= Easy; 5=Very difficult)(Required.)
Easy
Very difficult
8.How often do you register more that 100 birds in the APP?(Required.)
9.How many birds do you see approximately in the picture below?(Required.)
10.How many birds do you see approximately in the picture below?(Required.)
11.How many birds do you see approximately in the picture below?(Required.)
12.How many birds do you see approximately in the picture below?
(Required.)
13.How many recordings do you normally do on average per hour during your shift in the daylight?(Required.)
14.Do you record all birds that you see at the airport?(Required.)
15.Can you estimate, what percentage of total birds on the Airport you record?(Required.)
16.How often do you record "No activity"?(Required.)
17.Do you always record your actions right away? (Required.)
18.Airport (ICAO):(Required.)