Write 2 species of migratory birds.
1. Arctic Tern: This bird travels an average of 44,000 miles annually, during its migration from its northern breeding grounds to the Antarctic coast, where it spends its winter.

2. Sandhill Crane: This species of migratory bird breeds in the arctic and subarctic regions, with populations traveling from as far as Siberia to their wintering grounds in Mexico, Texas, and New Mexico.
Complete the following task based on the instruction and optional input provided.### Instruction:
Write 2 species of migratory birds.

### Output:
1. Arctic Tern: This bird travels an average of 44,000 miles annually, during its migration from its northern breeding grounds to the Antarctic coast, where it spends its winter.

2. Sandhill Crane: This species of migratory bird breeds in the arctic and subarctic regions, with populations traveling from as far as Siberia to their wintering grounds in Mexico, Texas, and New Mexico.