wrote some tests

app/bird/tests.py

@@ -1,3 +1,15 @@
 from django.test import TestCase
 
-# Create your tests here.
+
+class BirdTestCase(TestCase):
+    def setUp(self):
+        Bird.objects.create(
+            name="Vogel 1",
+            species="Art 1",
+            aviary=Aviary.objects.create(
+                description="Voliere 1",
+                condition="Offen",
+                last_ward_round="2021-01-01",
+                comment="Test",
+            ),
+            date_of_birth="2020-01-01