The Gledhow Valley Nestbox Scheme began in 1989 with the intention of encouraging birds that might otherwise not be able to breed in the valley. The success of the scheme can be seen in the table below, but there have been some definite high and low points.

To learn more about the progress of the Nestbox Scheme (including the Attack of the Killer Woodpeckers!), please see the Bird Stories from Gledhow Valley Woods section.

Year	No. of Boxes in Woods	Failed Boxes*	Success- full Boxes	No. of Fledged Blue Tit	From no. of Boxes	No. of Fledged Great Tit	From no. of Boxes	No. of Fledged Nuthatch	From no. of Boxes
1989	12	4	8	52	7	6	1	-	-
	Cumulative total:			52	7	6	1	-	-
1990	34	9	25	161	21	28	4	-	-
	Cumulative total:			213	28	34	5	-	-
1991	37	7	30	195	26	28	4	-	-
	Cumulative total:			408	54	62	9	-	-
1992	39	15	24	168	20	32	4	-	-
	Cumulative total:			576	74	94	13	-	-
1993	45	18	27	179	22	35	5	-	-
	Cumulative total:			755	96	129	18	-	-
1994	47	19	28	154	19	65	9	-	-
	Cumulative total:			909	115	194	27	-	-
1995	52	19	33	177	21	80	11	5	1
	Cumulative total:			1086	136	274	38	5	1
1996	72	25	47	269	36	61	11	-	-
	Cumulative total:			1355	172	335	49	5	1
1997	73	28	45	272	34	61	11	-	-
	Cumulative total:			1627	206	396	60	5	1
1998	74	35	39	183	24	72	15	-	-
	Cumulative total:			1810	230	468	75	5	1
1999	73	43	30	136	21	56	9	-	-
	Cumulative total:			1946	251	524	84	5	1
2000	72	28	44	234	29	100	15	-	-
	Cumulative total:			2180	280	624	99	5	1
2001	72	26	46	181	25	117	19	-	-
	Cumulative total:			2361	305	741	118	5	1
2002	70	21	49	229	30	127	18	-	-
	Cumulative total:			2590	335	868	136	5	1
2003	76	22	54	180	27	128	27	-	-
	Cumulative total:			2770	362	996	163	5	1
2004	77	24	53	193	28	171	26	-	-
	Cumulative total:			2963	390	1167	189	5	1
2005	85	32	53	138	26	132	27	-	-
	Cumulative total:			3101	416	1299	216	5	1

*Anything from empty box to dead brood.