diff --git a/core.trees/objects/birch/birch1.iob b/core.trees/objects/birch/birch1.iob
new file mode 100644
index 00000000..bcae6818
Binary files /dev/null and b/core.trees/objects/birch/birch1.iob differ
diff --git a/core.trees/objects/birch/birch2.iob b/core.trees/objects/birch/birch2.iob
new file mode 100644
index 00000000..6b8d5bd8
Binary files /dev/null and b/core.trees/objects/birch/birch2.iob differ
diff --git a/core.trees/objects/birch/birch3.iob b/core.trees/objects/birch/birch3.iob
new file mode 100644
index 00000000..2537f3e6
Binary files /dev/null and b/core.trees/objects/birch/birch3.iob differ
diff --git a/core.trees/objects/birch/birch4.iob b/core.trees/objects/birch/birch4.iob
new file mode 100644
index 00000000..3068fbfc
Binary files /dev/null and b/core.trees/objects/birch/birch4.iob differ
diff --git a/core.trees/objects/birch/birch5.iob b/core.trees/objects/birch/birch5.iob
new file mode 100644
index 00000000..22d903a8
Binary files /dev/null and b/core.trees/objects/birch/birch5.iob differ
diff --git a/core.trees/objects/birch/birch6.iob b/core.trees/objects/birch/birch6.iob
new file mode 100644
index 00000000..f96728d9
Binary files /dev/null and b/core.trees/objects/birch/birch6.iob differ
diff --git a/core.trees/objects/birch/birch7.iob b/core.trees/objects/birch/birch7.iob
new file mode 100644
index 00000000..d9eed5af
Binary files /dev/null and b/core.trees/objects/birch/birch7.iob differ
diff --git a/core.trees/objects/birch/birch8.iob b/core.trees/objects/birch/birch8.iob
new file mode 100644
index 00000000..dca8a05a
Binary files /dev/null and b/core.trees/objects/birch/birch8.iob differ