Razorbill

Table 4.10: Potential razorbill mortality following displacement from the Berwick Bank Development Array in the breeding season. Estimates considered, in light of empirical evidence, to represent the most realistic scenarios are colour coded, with dark teal representing rates advised by the Scoping Opinion; orange representing rates defined by the Developer Approach; and light teal representing uncertainty around these figures.

Razorbill (Breeding season)	Mortality Level (% of displaced birds at risk of mortality)
Displacement Level (% of all birds on site)		0%	1%	2%	3%	4%	5%	10%	15%	20%	30%	50%	80%	100%
	0%	0	0	0	0	0	0	0	0	0	0	0	0	0
	10%	0	4	7	10	13	16	31	46	61	92	153	244	305
	20%	0	7	13	19	25	31	61	92	122	183	305	487	609
	30%	0	10	19	28	37	46	92	137	183	274	457	731	913
	40%	0	13	25	37	49	61	122	183	244	366	609	974	1217
	50%	0	16	31	46	61	77	153	229	305	457	761	1217	1521
	60%	0	19	37	55	74	92	183	274	366	548	913	1461	1826
	70%	0	22	43	64	86	107	213	320	426	639	1065	1704	2130
	80%	0	25	49	74	98	122	244	366	487	731	1217	1947	2434
	90%	0	28	55	83	110	137	274	411	548	822	1369	2191	2738
	100%	0	31	61	92	122	153	305	457	609	913	1521	2434	3042

Table 4.11: Potential razorbill mortality following displacement from the Berwick Bank Development Array plus 2 km buffer in the breeding season. Estimates considered, in light of empirical evidence, to represent the most realistic scenarios are colour coded, with dark teal representing rates advised by the Scoping Opinion; orange representing rates defined by the Developer Approach; and light teal representing uncertainty around these figures.

Razorbill (Breeding season)	Mortality Level (% of displaced birds at risk of mortality)
Displacement Level (% of all birds on site)		0%	1%	2%	3%	4%	5%	10%	15%	20%	30%	50%	80%	100%
	0%	0	0	0	0	0	0	0	0	0	0	0	0	0
	10%	0	5	9	13	17	21	41	61	81	122	202	324	404
	20%	0	9	17	25	33	41	81	122	162	243	404	647	808
	30%	0	13	25	37	49	61	122	182	243	364	607	970	1213
	40%	0	17	33	49	65	81	162	243	324	485	808	1293	1616
	50%	0	21	41	61	81	101	202	303	404	606	1010	1616	2020
	60%	0	25	49	73	97	122	243	364	485	728	1213	1940	2425
	70%	0	29	57	85	114	142	283	425	566	849	1415	2263	2829
	80%	0	33	65	97	130	162	324	485	647	970	1616	2586	3232
	90%	0	37	73	110	146	182	364	546	728	1091	1818	2909	3636
	100%	0	41	81	122	162	202	404	606	808	1212	2020	3232	4040

Table 4.1227: Potential razorbill mortality following displacement from the Berwick Bank Development array in the non-breeding season. Estimates considered, in light of empirical evidence, to represent the most realistic scenarios are colour coded, with dark teal representing rates advised by the Scoping Opinion; orange representing rates defined by the Developer Approach; and light teal representing uncertainty around these figures.

Razorbill (Non-breeding season)	Mortality Level (% of displaced birds at risk of mortality)
Displacement Level (% of all birds on site)		0%	1%	2%	3%	4%	5%	10%	15%	20%	30%	50%	80%	100%
	0%	0	0	0	0	0	0	0	0	0	0	0	0	0
	10%	0	9	18	27	35	44	88	131	175	262	437	698	873
	20%	0	18	35	53	70	88	175	262	349	524	873	1396	1745
	30%	0	27	53	79	105	131	262	393	524	785	1309	2094	2617
	40%	0	35	70	105	140	175	349	524	698	1047	1745	2792	3489
	50%	0	44	88	131	175	219	437	655	873	1309	2181	3489	4361
	60%	0	53	105	157	210	262	524	785	1047	1570	2617	4187	5234
	70%	0	62	123	184	245	306	611	916	1222	1832	3053	4885	6106
	80%	0	70	140	210	280	349	698	1047	1396	2094	3489	5583	6978
	90%	0	79	157	236	314	393	785	1178	1570	2355	3925	6280	7850
	100%	0	88	175	262	349	437	873	1309	1745	2617	4361	6978	8722

Table 4.13: Potential razorbill mortality following displacement from the Berwick Bank Development array plus 2 km buffer in the spring migration (non-breeding) period. Estimates considered, in light of empirical evidence, to represent the most realistic scenarios are colour coded, with dark teal representing rates advised by the Scoping Opinion; orange representing rates defined by the Developer Approach; and light teal representing uncertainty around these figures.

Razorbill (Spring migration)	Mortality Level (% of displaced birds at risk of mortality)
Displacement Level (% of all birds on site)		0%	1%	2%	3%	4%	5%	10%	15%	20%	30%	50%	80%	100%
	0%	0	0	0	0	0	0	0	0	0	0	0	0	0
	10%	0	7	15	22	30	37	75	112	150	224	374	598	748
	20%	0	15	30	45	60	75	150	224	299	449	748	1197	1496
	30%	0	22	45	67	90	112	224	337	449	673	1122	1795	2244
	40%	0	30	60	90	120	150	299	449	598	898	1496	2394	2992
	50%	0	37	75	112	150	187	374	561	748	1122	1870	2992	3740
	60%	0	45	90	135	180	224	449	673	898	1346	2244	3590	4488
	70%	0	52	105	157	209	262	524	785	1047	1571	2618	4189	5236
	80%	0	60	120	180	239	299	598	898	1197	1795	2992	4787	5984
	90%	0	67	135	202	269	337	673	1010	1346	2020	3366	5386	6732
	100%	0	75	150	224	299	374	748	1122	1496	2244	3740	5984	7480

Table 4.14: Potential razorbill mortality following displacement from the Berwick Bank Development array plus 2 km buffer in the autumn migration (non-breeding) period. Estimates considered, in light of empirical evidence, to represent the most realistic scenarios are colour coded, with dark teal representing rates advised by the Scoping Opinion; orange representing rates defined by the Developer Approach; and light teal representing uncertainty around these figures.

Razorbill (Autumn migration)	Mortality Level (% of displaced birds at risk of mortality)
Displacement Level (% of all birds on site)		0%	1%	2%	3%	4%	5%	10%	15%	20%	30%	50%	80%	100%
	0%	0	0	0	0	0	0	0	0	0	0	0	0	0
	10%	0	9	18	27	35	44	88	133	177	265	442	708	885
	20%	0	18	35	53	71	88	177	265	354	531	885	1416	1770
	30%	0	27	53	80	106	133	265	398	531	796	1327	2124	2655
	40%	0	35	71	106	142	177	354	531	708	1062	1770	2832	3540
	50%	0	44	88	133	177	221	442	664	885	1327	2212	3540	4424
	60%	0	53	106	159	212	265	531	796	1062	1593	2655	4248	5309
	70%	0	62	124	186	248	310	619	929	1239	1858	3097	4955	6194
	80%	0	71	142	212	283	354	708	1062	1416	2124	3540	5663	7079
	90%	0	80	159	239	319	398	796	1195	1593	2389	3982	6371	7964
	100%	0	88	177	265	354	442	885	1327	1770	2655	4424	7079	8849

Table 4.15: Potential razorbill mortality following displacement from the Berwick Bank Development array plus 2 km buffer in the winter (non-breeding) period. Estimates considered, in light of empirical evidence, to represent the most realistic scenarios are colour coded, with dark teal representing rates advised by the Scoping Opinion; orange representing rates defined by the Developer Approach; and light teal representing uncertainty around these figures.

Razorbill (Winter)	Mortality Level (% of displaced birds at risk of mortality)
Displacement Level (% of all birds on site)		0%	1%	2%	3%	4%	5%	10%	15%	20%	30%	50%	80%	100%
	0%	0	0	0	0	0	0	0	0	0	0	0	0	0
	10%	0	1	3	4	6	7	14	21	28	42	70	112	140
	20%	0	3	6	8	11	14	28	42	56	84	140	224	280
	30%	0	4	8	13	17	21	42	63	84	126	210	336	420
	40%	0	6	11	17	22	28	56	84	112	168	280	448	560
	50%	0	7	14	21	28	35	70	105	140	210	350	560	700
	60%	0	8	17	25	34	42	84	126	168	252	420	672	839
	70%	0	10	20	29	39	49	98	147	196	294	490	783	979
	80%	0	11	22	34	45	56	112	168	224	336	560	895	1119
	90%	0	13	25	38	50	63	126	189	252	378	630	1007	1259
	100%	0	14	28	42	56	70	140	210	280	420	700	1119	1399

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