diff --git a/db/migrations/20231102100501_add_eggs_deployment_extra.sql b/db/migrations/20231102100501_add_eggs_deployment_extra.sql
new file mode 100644
index 0000000..cb9aea6
--- /dev/null
+++ b/db/migrations/20231102100501_add_eggs_deployment_extra.sql
@@ -0,0 +1,90 @@
+-- migrate:up
+
+alter table deployment add column eggs_deployment_extra bool;
+
+create or replace function import_deployment_and_chick(new import) returns void language plpgsql
+as $$
+declare
+    deployment_id int;
+    date date;
+begin
+    date = coalesce(
+        new.gps_deployment_date,
+        new.gls_deployment_date,
+        new.tdr_deployment_date,
+        new.accelerometer_deployment_date
+    )::date;
+    insert into deployment values(
+        default,
+        new.ring_number,
+        date,
+        (new.total_logger_mass_all_loggers_g)::decimal,
+        new.age,
+        new.sex,
+        new.sexing_method,
+        (new.mass_deployment)::int,
+        (new.mass_retrieval)::int,
+        (new.scull)::decimal,
+        (new.tarsus)::decimal,
+        (new.wing)::decimal,
+        (new.culmen)::decimal,
+        (new.gonys)::decimal,
+        new.breeding_stage_deployment,
+        rtrim(new.eggs_deployment, '+')::int,
+        (new.chicks_deployment)::int,
+        new.breeding_stage_retrieval,
+        (new.eggs_retrieval)::int,
+        (new.chicks_retrieval)::int,
+        new.further_chick_measures_available,
+        (new.more_information_on_breeding_success_available)::bool,
+        new.colony,
+        (new.blood_sample)::bool,
+        (new.feather_sample)::bool,
+        (new.other_samples)::bool,
+        new.comments_samples,
+        new.comment,
+        new.other,
+        new.funding_source,
+        new.data_responsible,
+        right(new.eggs_deployment, 1) = '+'
+    ) returning id into deployment_id;
+    if new.chick1_mass_retrieval is not null then
+        insert into chick values(
+            default,
+            deployment_id,
+            ltrim(new.chick1_mass_deployment, '~')::decimal,
+            left(new.chick1_mass_deployment, 1) != '~',
+            (new.chick1_age_deployment_days)::int,
+            ltrim(new.chick1_mass_retrieval, '~')::decimal,
+            left(new.chick1_mass_retrieval, 1) != '~',
+            (new.chick1_age_retrieval_days)::int
+        );
+    end if;
+    if new.chick2_mass_retrieval is not null then
+        insert into chick values(
+            default,
+            deployment_id,
+            ltrim(new.chick2_mass_deployment, '~')::decimal,
+            left(new.chick2_mass_deployment, 1) != '~',
+            (new.chick2_age_deployment_days)::int,
+            ltrim(new.chick2_mass_retrieval, '~')::decimal,
+            left(new.chick2_mass_retrieval, 1) != '~',
+            (new.chick2_age_retrieval_days)::int
+        );
+    end if;
+    if new.chick3_mass_retrieval is not null then
+        insert into chick values(
+            default,
+            deployment_id,
+            ltrim(new.chick3_mass_deployment, '~')::decimal,
+            left(new.chick3_mass_deployment, 1) != '~',
+            (new.chick3_age_deployment_days)::int,
+            ltrim(new.chick3_mass_retrieval, '~')::decimal,
+            left(new.chick3_mass_retrieval, 1) != '~',
+            (new.chick3_age_retrieval_days)::int
+        );
+    end if;
+end;
+$$;
+
+-- migrate:down