Answer:There will be 4727 birds in all.Step-by-step explanation:1. What is ASKED?How many birds are there in all?2. What are the GIVEN facts or information?There are currently 3289 birds in the sanctuary. Another batch of 1438 birds will join soon.3. What OPERATION should be used?Addition4. What is the NUMBER SENTENCE that represents the problem?3289 + 14385. How do we show the SOLUTION?3289 + 1438 = 47276. What is the ANSWER?There will be 4727 birds in all.